My friend needed a case for his balalaika so he could take it up to camp safely. So we made one. A balalaika, by the way, is a three-stringed triangular instrument from Russia. It's very old. His has a sticker on it saying "made in the USSR." The handle was salvaged off an old suitcase, and we bought the foam at an upholstery store. The rest was built out of plywood.