The fans of Brooklyn's supergroup They Might Be Giants love to make tribute videos. We're particularly partial to the Scrubs mashup we've linked here, but some of these are also pretty amusing/inexplicable/absurd/awesome:
Minimum Wage
Rabid Child
She's an Angel
Particle Man
Clap Your Hands-- There.com Version
Clap Your Hands -- Baby Version
Another Experimental Film
Sleeping in the Flowers