I've seen it. I've heard it. It's a thing of beauty - both senses.

Here's another photo, with Sexy Dave on the beast.
And check out Harris's other guitars too.
"I Can't Wait to Do a Tracheotomy" and other love songs available just because you damn well want them.

The National Music Museum has photos and descriptions of a wealth of odd, beautiful and unusual historic musical instruments, including the schediphon, trombacello, Tristan trumpet, basset horn, lyre guitar, ophicleide... plus a few serpents. And if that doesn't satisfy your curvy horn jones, things get pretty serpentine here.