diff --git a/keyboard/planck/keymaps/cbbrowne/keymap.c b/keyboard/planck/keymaps/cbbrowne/keymap.c
index bd09f65c8..45a297cda 100644
--- a/keyboard/planck/keymaps/cbbrowne/keymap.c
+++ b/keyboard/planck/keymaps/cbbrowne/keymap.c
@@ -35,6 +35,23 @@
      Workman just for fun.  They're useless to me, though.
 */
 
+
+/* Some interesting things implemented
+
+   - There is a macro that writes out "cbbrowne" just because I could
+   - There is a (somewhat cruddy) linear congruential random number
+     generator.
+     - I would like to be seeding it with clock info to make it look
+       more random
+   - There are two macros that use the random number generators
+     - one, M_RANDDIGIT, generates a random digit based on state
+       of the random number generator
+     - the other, M_RANDLETTER, generates a random letter based on state
+       of the random number generator
+     - in both, note the use of register_code()/unregister_code()
+       to indicate the desired key
+*/
+
 /* Other things to do...
 
    - Need to think about what zsh and readline actions I use lots
@@ -48,14 +65,18 @@
 
 enum layers {
   _QW = 0,  /* Qwerty mapping */
-  _CM, /* Colemak */
-  _DV, /* Dvorak */
-  _WK, /* Workman */
   _LW, /* Lower layer, where top line has symbols !@#$%^&*() */
   _RS, /* Raised layer, where top line has digits 1234567890 */
   _KP, /* Key pad */
 };
 
+enum macro_id {
+  M_LED = 0,
+  M_USERNAME,
+  M_RANDDIGIT,
+  M_RANDLETTER
+};
+
 /* Note that Planck has dimensions 4 rows x 12 columns */
 
 const uint16_t PROGMEM keymaps[][MATRIX_ROWS][MATRIX_COLS] = {
@@ -63,80 +84,219 @@ const uint16_t PROGMEM keymaps[][MATRIX_ROWS][MATRIX_COLS] = {
   {KC_ESC,  KC_Q,    KC_W,    KC_E,    KC_R,    KC_T,    KC_Y,    KC_U,    KC_I,    KC_O,    KC_P,    KC_BSPC},
   {KC_LCTL, KC_A,    KC_S,    KC_D,    KC_F,    KC_G,    KC_H,    KC_J,    KC_K,    KC_L,    KC_SCLN, KC_ENT},
   {KC_LSFT, KC_Z,    KC_X,    KC_C,    KC_V,    KC_B,    KC_N,    KC_M,    KC_COMM, KC_DOT,  KC_SLSH, KC_QUOT },
-  {KC_TAB,  M(0), KC_LALT, KC_LGUI, MO(_LW), KC_SPC,  KC_SPC,  MO(_RS), KC_LEFT, KC_DOWN, KC_UP,   KC_RGHT}
+  {KC_TAB,  M(M_LED), KC_LALT, KC_LGUI, MO(_LW), KC_SPC,  KC_SPC,  MO(_RS), KC_LEFT, KC_DOWN, KC_UP,   KC_RGHT}
 },
-[_CM] = { /* Colemak */
-  {KC_ESC,  KC_Q,    KC_W,    KC_F,    KC_P,    KC_G,    KC_J,    KC_L,    KC_U,    KC_Y,    KC_SCLN, KC_BSPC},
-  {KC_LCTL, KC_A,    KC_R,    KC_S,    KC_T,    KC_D,    KC_H,    KC_N,    KC_E,    KC_I,    KC_O,    KC_ENT},
-  {KC_LSFT, KC_Z,    KC_X,    KC_C,    KC_V,    KC_B,    KC_K,    KC_M,    KC_COMM, KC_DOT,  KC_SLSH, KC_QUOT },
-  {KC_TAB,  M(0), KC_LALT, KC_LGUI, MO(_LW), KC_SPC,  KC_SPC,  MO(_RS), KC_LEFT, KC_DOWN, KC_UP,   KC_RGHT}
-},
-[_DV] = { /* Dvorak */
-  {KC_ESC,  KC_QUOT, KC_COMM, KC_DOT,  KC_P,    KC_Y,    KC_F,    KC_G,    KC_C,    KC_R,    KC_L,    KC_BSPC}, 
-  {KC_LCTL, KC_A,    KC_O,    KC_E,    KC_U,    KC_I,    KC_D,    KC_H,    KC_T,    KC_N,    KC_S,    KC_SLSH}, 
-  {KC_LSFT, KC_SCLN, KC_Q,    KC_J,    KC_K,    KC_X,    KC_B,    KC_M,    KC_W,    KC_V,    KC_Z,    KC_ENT }, 
-  {KC_TAB,  M(0), KC_LALT, KC_LGUI, MO(_LW), KC_SPC,  KC_SPC,  MO(_RS), KC_LEFT, KC_DOWN, KC_UP,   KC_RGHT} 
-}, 
-[_WK] = { /* Workman */
-  {KC_ESC,  KC_Q,    KC_D,    KC_R,    KC_W,    KC_B,    KC_J,    KC_F,    KC_U,    KC_P,    KC_SCLN,    KC_BSPC},
-  {KC_LCTL, KC_A,    KC_S,    KC_H,    KC_T,    KC_G,    KC_Y,    KC_N,    KC_E,    KC_O,    KC_I,       KC_ENT},
-  {KC_LSFT, KC_Z,    KC_X,    KC_M,    KC_C,    KC_V,    KC_K,    KC_L,    KC_COMM, KC_DOT,  KC_SLSH, KC_QUOT },
-  {KC_TAB,  M(0), KC_LALT, KC_LGUI, MO(_LW), KC_SPC,  KC_SPC,  MO(_RS), KC_LEFT, KC_DOWN, KC_UP,   KC_RGHT}
-}, 
 [_RS] = { /* RAISE */
   {KC_GRV,  KC_1,    KC_2,    KC_3,    KC_4,    KC_5,    KC_6,    KC_7,    KC_8,    KC_9,    KC_0,    KC_BSPC},
   {KC_TRNS, KC_F1,   KC_F2,   KC_F3,   KC_F4,   KC_F5,   KC_F6,   KC_MINS, KC_EQL,  KC_LBRC, KC_RBRC, KC_BSLS},
-  {KC_TRNS, KC_F7,   KC_F8,   KC_F9,   KC_F10,  KC_F11,  KC_F12,  DF(_QW), DF(_CM), DF(_WK), RESET,   KC_TRNS},
+  {KC_TRNS, KC_F7,   KC_F8,   KC_F9,   KC_F10,  KC_F11,  KC_F12,  DF(_QW), DF(_KP), DF(_KP), RESET,   KC_TRNS},
   {KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_MNXT, KC_VOLD, KC_VOLU, KC_MPLY}
 },
 [_LW] = { /* LOWER */
   {KC_TILD, KC_EXLM, KC_AT,   KC_HASH, KC_DLR,  KC_PERC, KC_CIRC, KC_AMPR, KC_ASTR, KC_LPRN, KC_RPRN, KC_BSPC},
   {KC_TRNS, KC_F1,   KC_F2,   KC_F3,   KC_F4,   KC_F5,   KC_F6,   KC_UNDS, KC_PLUS, KC_LCBR, KC_RCBR, KC_PIPE},
-  {KC_TRNS, KC_F7,   KC_F8,   KC_F9,   KC_F10,  KC_F11,  KC_F12,  DF(_QW), DF(_CM), DF(_WK), RESET,   KC_TRNS},
+  {KC_TRNS, KC_F7,   KC_F8,   KC_F9,   KC_F10,  KC_F11,  KC_F12,  DF(_QW), DF(_KP), DF(_KP), RESET,   KC_TRNS},
   {KC_TRNS, DF(_KP), KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_MNXT, KC_VOLD, KC_VOLU, KC_MPLY}
 },
 [_KP] = { /* Key Pad */
-  {KC_ESC,  KC_Q,    KC_W,    KC_E,    KC_R,    KC_T,    KC_Y,    KC_KP_ENTER, KC_KP_PLUS, KC_KP_PLUS, KC_KP_ENTER, KC_KP_ENTER},
-  {KC_LCTL, KC_A,    KC_S,    KC_D,    KC_F,    KC_G,    KC_H,    KC_KP_MINUS, KC_7, KC_8,    KC_9,  KC_KP_DOT},
-  {KC_LSFT, KC_Z,    KC_X,    KC_C,    KC_V,    KC_B,    KC_N,    KC_KP_PLUS,    KC_4, KC_5,  KC_6, KC_0},
-  {BL_STEP, M(0), KC_LALT, KC_LGUI, KC_NO, KC_SPC,  KC_SPC,  DF(_QW),   KC_1, KC_2, KC_3,  KC_0}
+  {KC_ESC,  M(M_USERNAME),    KC_W,    KC_E,    KC_R,    KC_T,    KC_Y,    KC_KP_ENTER, KC_KP_PLUS, KC_KP_PLUS, KC_KP_ENTER, KC_BSPC},
+  {KC_LCTL, M(M_RANDDIGIT),    KC_S,    KC_D,    KC_F,    KC_G,    KC_H,    KC_KP_MINUS, KC_7, KC_8,    KC_9,  KC_ENT},
+  {KC_LSFT, M(M_RANDLETTER),    KC_X,    KC_C,    KC_V,    KC_B,    KC_N,    KC_KP_PLUS,    KC_4, KC_5,  KC_6, KC_DOT},
+  {BL_STEP, M(M_LED), KC_LALT, KC_LGUI, KC_NO, KC_SPC,  KC_SPC,  DF(_QW),   KC_1, KC_2, KC_3,  KC_0}
 }
 };
 
-/* I'm planning to use this to set up some macros, including one to
-   expand into "cbbrowne", more to prove it can be done than anything
-   else.
-*/
-
-enum macro_id {
-  M_P0,
-  M_P1,
-  M_P2,
-  M_P3,
-  M_P4,
-  M_P5,
-  M_USERNAME
-};
-
-
 const uint16_t PROGMEM fn_actions[] = {
-
 };
 
+/* This bit of logic seeds a wee linear congruential random number generator */
+
+static uint16_t random_value = 157;
+#define randadd 53
+#define randmul 181
+#define randmod 167
+
 const macro_t *action_get_macro(keyrecord_t *record, uint8_t id, uint8_t opt)
 {
   // MACRODOWN only works in this function
-      switch(id) {
-        case 0:
-          if (record->event.pressed) {
-            register_code(KC_RSFT);
-            #ifdef BACKLIGHT_ENABLE
-              backlight_step();
-            #endif
-          } else {
-            unregister_code(KC_RSFT);
-          }
-        break;
-      }
-    return MACRO_NONE;
+  switch(id) {
+  case M_LED:
+    if (record->event.pressed) {
+      register_code(KC_RSFT);
+#ifdef BACKLIGHT_ENABLE
+      backlight_step();
+#endif
+    } else {
+      unregister_code(KC_RSFT);
+    }
+    break;	    
+  case M_USERNAME:
+    if (record->event.pressed) {
+      return MACRO( I(1), T(C), T(B), T(B), T(R), T(O), T(W), T(N), T(E));
+    } else {
+      return MACRO_NONE ;
+    }
+    break;
+  case M_RANDDIGIT:
+    /* Generate, based on random number generator, a keystroke for
+       a numeric digit chosen at random */
+    random_value = ((random_value + randadd) * randmul) % randmod;
+    if (record->event.pressed) 
+    switch(random_value % 10) {
+    case 0:
+      register_code (KC_0);
+      unregister_code (KC_0);
+      break;
+    case 1:
+      register_code (KC_1);
+      unregister_code (KC_1);
+      break;
+    case 2:
+      register_code (KC_2);
+      unregister_code (KC_2);
+      break;
+    case 3:
+      register_code (KC_3);
+      unregister_code (KC_3);
+      break;
+    case 4:
+      register_code (KC_4);
+      unregister_code (KC_4);
+      break;
+    case 5:
+      register_code (KC_5);
+      unregister_code (KC_5);
+      break;
+    case 6:
+      register_code (KC_6);
+      unregister_code (KC_6);
+      break;
+    case 7:
+      register_code (KC_7);
+      unregister_code (KC_7);
+      break;
+    case 8:
+      register_code (KC_8);
+      unregister_code (KC_8);
+      break;
+    case 9:
+      register_code (KC_9);
+      unregister_code (KC_9);
+      break;
+    }
+    break;
+  case M_RANDLETTER:
+    /* Generate, based on random number generator, a keystroke for
+       a letter chosen at random */
+    random_value = ((random_value + randadd) * randmul) % randmod;
+    if (record->event.pressed) 
+    switch(random_value % 26) {
+    case 0:
+      register_code(KC_A);
+      unregister_code(KC_A);
+      break;
+    case 1:
+      register_code(KC_B);
+      unregister_code(KC_B);
+      break;
+    case 2:
+      register_code(KC_C);
+      unregister_code(KC_C);
+      break;
+    case 3:
+      register_code(KC_D);
+      unregister_code(KC_D);
+      break;
+    case 4:
+      register_code(KC_E);
+      unregister_code(KC_E);
+      break;
+    case 5:
+      register_code(KC_F);
+      unregister_code(KC_F);
+      break;
+    case 6:
+      register_code(KC_G);
+      unregister_code(KC_G);
+      break;
+    case 7:
+      register_code(KC_H);
+      unregister_code(KC_H);
+      break;
+    case 8:
+      register_code(KC_I);
+      unregister_code(KC_I);
+      break;
+    case 9:
+      register_code(KC_J);
+      unregister_code(KC_J);
+      break;
+    case 10:
+      register_code(KC_K);
+      unregister_code(KC_K);
+      break;
+    case 11:
+      register_code(KC_L);
+      unregister_code(KC_L);
+      break;
+    case 12:
+      register_code(KC_M); 
+      unregister_code(KC_M); 
+      break;
+    case 13:
+      register_code(KC_N);
+      unregister_code(KC_N);
+      break;
+    case 14:
+      register_code(KC_O);
+      unregister_code(KC_O);
+      break;
+    case 15:
+      register_code(KC_P);
+      unregister_code(KC_P);
+      break;
+    case 16:
+      register_code(KC_Q);
+      unregister_code(KC_Q);
+      break;
+    case 17:
+      register_code(KC_R);
+      unregister_code(KC_R);
+      break;
+    case 18:
+      register_code(KC_S);
+      unregister_code(KC_S);
+      break;
+    case 19:
+      register_code(KC_T);
+      unregister_code(KC_T);
+      break;
+    case 20:
+      register_code(KC_U);
+      unregister_code(KC_U);
+      break;
+    case 21:
+      register_code(KC_V);
+      unregister_code(KC_V);
+      break;
+    case 22:
+      register_code(KC_W);
+      unregister_code(KC_W);
+      break;
+    case 23:
+      register_code(KC_X);
+      unregister_code(KC_X);
+      break;
+    case 24:
+      register_code(KC_Y);
+      unregister_code(KC_Y);
+      break;
+    case 25:
+      register_code(KC_Z);
+      unregister_code(KC_Z);
+      break;
+    }
+    break;
+  }
+  return MACRO_NONE;
 };