I'm conducting a couple of simple-guitar building workshops this year (one at Ohio State University in early April and one in Brussels on June 1), so I designed this fretless, 2-string guitar that requires no glue and just one screw (other than the small screws that come with the tuners). Right know I am calling it a cantar, but I'm hoping a Boing Boing reader can come up with a name that's more fun. Here's what it sounds like.
More photos after the jump.