Step 1: Get your erasers and flash drive
The flash drive I got at an office supply store. I got a 1 gig since I barely ever use that much as I use flash drives for moving small files around. I don't need anything bigger for now. This is also pretty cheap.
Bonus points for the pink cap on it. It was like this flash drive wanted to be in an eraser from the beginning.
Step 2: Cut the erasers
Step 3: Free up the flash drive
Once it's open you can behold just how tiny the real flash drive is.