I love this: it’s cheap, effective and pretty simple to do. Basically, you take a 2$ Radio Shack piezoelectric transducer and use it as pickup. One thing bothers me a bit though: you need to drill a hole in the guitar to fit the jack. I’m quite sure there’s a way to go around this. And who cares, I don’t have a guitar ;)

I might build an acoustic bass out of scrap wood I have at home, and that sort of pickup would be perfect for it.

Cheap Acoustic Guitar Pickup [link][via]

How to make a small guitar from an Altoids tin. It may not be a Stratocaster, but it [almost] fits in your pockets. If I’d make one, I’d add some frets.

Make an Altoids Guitar [link]

Another Instructable shows you how to make a guitar pickup. Now maybe, if you put the two together, that is , if you can make a miniature version of the pickup, you can end up with a mini electric guitar. If you ask me, it’s worth trying.

Make a Guitar Pickup [link]