I'd also suggest Tom Smith, 'The world's fastest filker'; he wrote and performed the official song for international 'Talk like a pirate day', and came up with a superhero-themed album titled 'The last hero on Earth'...every song on it(approx. 24 tracks) written(based entirely off suggestions for song titles based on superhero comic themes) in -24 HOURS-...it's said when he picks up his guitar, the stopwatches come out...and I've witnessed this 1st-hand at a few convention!
Also in the dementia(formerly known as 'novelty') music genre, I'd also suggest contacting artists 'Hot Waffles'(one of their members played CoH for awhile), Tom Rockwell(a.k.a., Devo Spice), Throwing Toasters, Shoebox of Worm Quartet, and The Great Luke Ski(the most requested artist to date of the 21st century on the Dr. Demento show)....