EDIT: The USB drive will still work and hold memory after you are done. There is no reason to cut of the circuit board; it would be almost impossible to do that with the USB drive you will need for this project!
Please, comment and criticize.
Step 1: Get the Supplies!
You will need:
Kingston Data Traveler mini fun ($13 to $30) from amazon.com:
A old laptop keyboard or some keys.
Tape. Optional if you (Like Me) do not want to make this permanent.
Xacto knife. Maybe a screwdriver (not philips head) or other prying tool would work.
That is All!
Step 2: Take off casing
Step 3: Trim and Cut Keys
Now, to work. Cut out all the attaching crud off the back of the key, then trim one end to fit the USB drive.
repeat on other key.