Step 1: Materials
- liberated keyboard keys
- map style push pins
- Dremel tool, or a pair of pliers, or small hand saw, or an exacto knife
- drill with drill bit to match the diameter of the head of the push pin. Mine required a 3/16" drill bit.
- hot glue gun
Step 2: Choose some good keys
Check out the picture below to see what I mean.
Step 3: Cut off excess plastic on key
Step 4: Drill out a hole for the push pin
Be careful not to go all the way through and ruin the key, or drill into your finger.