Do you know of anything weird that they do to guitars or other stringed instruments?

For example, these are some less common things that weirdos invented (and are pretty cool):

-The Bazantar is a double bass (upright) with a ton of sympathetic strings. Youtube it, it sounds awesome. It sounds like sheer power.

-Then I've heard of people putting sympathetic strings down the inside of guitar necks. They hollow the neck out, reinforce it, and then stick a bunch of sympathetic strings down the inside.

-Then there's John Paul Jones's 3 neck acoustic guitar thing with one of the necks being a mandolin.

-Or how about the infinite sustainer project going on at project guitar forum, that's pretty cool stuff. I tried to build one, but that was early on and my EE skills were sub par.

-And let's not forget all the cool digital stuff coming out if you have midi pickups. (VG Strat anyone?)
Quote by aetherspear

GTFO. guitar hacker.
If you think things can't get worse it's probably only because you lack sufficient imagination.