Flutterby™! : Lockpick

Some days you just end up copying a Sensible Erection entry wholesale. I'll change the wording a bit, but...

Building a vibrating lockpick from a $6 Oral-B battery powered flosser relies on you having just a little bit of lock picking knowledge, and also builds on professionally acquired tools, but there's nothing in the latter set you couldn't make out of a bobby pin and an Allen wrench with a file and a spare evening. And if the video isn't a put-on, I'm going to the ultra lightweight bike lock system that I saw Bob and B.J. using over in San Anselmo(they went to the marine supply store and built little thin aircraft cable loops with a crimper), at least when I'm parking my bike in Marin, 'cause it's not like the bigger locks are any more secure than a luggage lock.

If you don't know where to start, that aforementioned entry suggested http://www.lockpicking101.com/, or you might start at The Document Which Used To Be Called The MIT Lockpicking Guide .