for my entry into the second annual summer's wooodworking creative 2x4 contest, i made an electric double bass out of a 2x4 pulled from a large pallet. i didn't win the contest but made a fully functioning instrument that i gave to a friend who has been using it since. here's how i did it!
the only tools you really need are an angle grinder, router, drill and some type of jigsaw/scrollsaw to shape the bridge. plus lots of sandpaper and patience.
thanks for watching -tim