14" x 46" x 5"
This was a regular cheap bass I got at the Pasadena Rose Bowl flea market for $25. I ended up spray painting it copper and putting way too much stuff all over it. It still plugs in and plays, but it's a little difficult to play it, as you might imagine. It's mainly conduit, screws, typewriter guts and bicycle parts.
Here's what the original bass looked like: