I had a USB memory stick that had fallen apart, and I had an iphone USB cable that didn't work. So I thought about combining the two and making a secret USB storage cable, which can then be used to prank people.
I used an iPhone cable as I had a broken one, but you could do this with any USB cable.
Date made: March 2013
Approx Cost: £0 - reusing old broken stuff
Approx Time: 0.5 hours
Step 1: Things You Need
1. iPhone cable
4. Rubber/Eraser (optional)
5. USB Storage.
I had a cheap copy of a LaCie USB key. It wasn't very well made and the cover kept splitting, and the internals would move as they weren't stuck down well.
I threw the case out in the end as the internals moved and connectors would touch the metal case. Not clever.
I kept the inside though as it still worked fine.
For this task, you need a similar type of USB storage; a very small flat one! I'm sure there are plenty out there.