I've been wanting to try circuit bending for awhile, and finally had some time to do so. I bought this and 2 other toys from Goodwill for about 3 or 4 bucks a piece. In the meantime I've invested in a bunch of components for doing such crazy things.
This is a keyboard of sorts, and had 2 settings - one that played songs and one that let you play. I poked around a bit to find some interesting sounds. Not as off-the-wall as some circuit-bending jobs, but still pretty fun. I left in a few moments of the normal functioning of the keyboard for comparison.