Last year, I came to mentioning the song to a guy in a tiki bar in Alameda (I was there with some friends from my Improv class) because the song had been floating around in my brain. Amazingly, he said that he knew the guy who made the song and he lived nearby. (small world, eh?).
I really should look him up. Here it is, Stairway to Gilligan’s Island by Roger and the Goosebumps: