All right, a bit of an odd thread idea this, but let's give it a go anyway...
I'm quite interested in library music. Not in the way that I'll happily bid sixty quid for old albums and CDs on ebay, but in the way that throughout the seventies (and even some of the eighties) it spawned some reasonably weird early electronic music, which perhaps doesn't quite get the credit it deserves. The link with Boards of Canada material has always been really obvious.
For that reason, I was delighted to find that KPM's website now allows full previews of available material - not least because anyone with a basic knowledge of how Temporary Internet Files work will be able to grab them for nothing without registering to their site as a "media business". This has been a really interesting find for me:
http://www1.playkpmmusic.com/pages/viewcd/viewcd.cfm?cdnum=1831Lo and behold, it's a muzak reggae album! Channel 4 used to use the dub version of "Fool in Love" (version b) during breaks from time to time, and it's an odd concoction, partly because I doubt I've heard any other dub reggae muzak in my life, so there's not anything I can sensibly compare it to. There's electronic burbling going on along with the not-particularly hard hitting rhythms, and I actually enjoy it in a strange way.
If you do keyword searches on Moog you'll find other cheese on toast oddities. There are also TV themes on there, sixties organ freak-outs, just thousands upon thousands of MP3s, really, many of which are bland background music, but plenty which are a bit more surprising than that.
So... do your worst and see what you can find. I discovered some bizarre studio band doing a Green Day type thing the other day, but I can't find it again now.