Step 2Cut away the dispenser
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This is the difficult part. Measure how much space the USB device will use then cut that much out from the dispenser. This took me two tries and I could have hacked away even a little more but oh well maybe next time. After you cut away the section of the dispenser you will need to reattach the top half (C-3PO's head) to the bottom half (PEZ body). I just used scotch tape to secure them together. So what you end up with is a PEZ dispenser with a really small candy storage space. But now with plenty of space inside to fit the USB device.
If you don't have or want to add glowing LED's for eyes and just want a plain ol PEZ with USB then I guess you would be done here. But if you really want to impress your friends, then continue on to the next step.