My father played the guitar, not very well, but somewhat. Back in the '50s he brought home a device someone had given him. It was a plastic box-like contraption with straps on one side and buttons on the top. It was supposed to be a guitar-chord player. You strapped it onto the neck of your guitar, then if you pressed down on the button marked A, it played an A-maj. chord, etc., supposedly. Actually, it didn't work worth a damn, since it was only cheap plastic and didn't get the strings stopped well enough to make a clear chord. But we thought it was a hilarious effort to substitute for fingers.