I will show you how to make a keyboard into something use full. Ok so first you will need some materials:
Keyboard
Hot Glue
Sticker Paper
needle nose pliers or Dremel
Hands
Half a Brain
Scissors(optional)

Step 1: Getting the Letters

First grab off the letters you will use from the keyboard. I used a laptop keyboard but any keyboard should work. Take your right index finger and put it under the top part of the key and pull. Do this on all the keys you want to use.

Step 2: Preping the Keys

Flip the key over and with a dremel or pliers twist and pull until the little nub comes off and get some sticker paper.

Step 3: Making the Sticker

Apply a blob hot glue to the paper and put the first letter on and apply pressure for a few seconds and repeat with all of your keys. then remove the excess glue from the edges. (Optional) With scissors cut around the words you have made and stick it some were. I wanted to make a name badge but i didn't have a badge back. If you make a badge post a pix if you can.