I just finished this totally freakish two-string guitar made from a canoe paddle. It was commissioned by CBGitty.com as a way to promote their excellent guitar parts and features their ultra-thin Gittybucker guitar pickup.
Because the boat oar was a whopping 4 feet long, I decided to give it an extended 27.5" baritone scale. It's fretless and played with a slide.
Other details include the blue tipped paint, aged to look like the paddle was old, an upside-down Strat jack and threaded bolts for nut and bridge.
See the full build notes and the 20 minute mini-documentary on building it at The Boat Oar Guitar Project
