OKay - I'm being obscure but there's a recording of Spock singing. One side is ordinary songs and the other has Bilbo Baggins and a song with the line "There goes the neighborhood" referring to humans wandering off earth. Haven't listened to it for years, I'll try to find the record.
Also there's a lot of small filk publishers - how about the one with the crippled spaceliner - rescued by crew of Our Favorite starship - who end up wiht "A jet, it's quite simple, you can build one right here - just ... and one tank of beer.
We drank up the fuel and were feeling no pain, when the Navy man left with a look of disdain."
Anyway, despite my faulty memory, there are a couple dozen on that record alone. Solar Sailor was the record title, I think was done by Mord in Milwaukee around the 70's for science fiction convention.
Good lord, if you want filk, I've got dozens, including all the 70's Tolkein set to music (steal tunes from only the best).
Funny ones - well, maybe I eat little fire lizards - Look for Leslie Fish on Google and see what you get or check out Mercedes Lackey because I know there's an associated music site.
I have to go home now and look up all the real names of all these for ya! (Was held hostage to my folks VCR to tape "Survivors" - they just got back from the Marquesas and were'nt allowed on that island cause they were taping - wanted to see what they missed. Elaine