To me, this seems great for ideas of what levels to make rather than names for levels that have already been made. "Yellow Snow" (thanks SonicMaster for pointing that out) doesn't seem like something that would really come in handy for some average level that's already been made, but hearing the title would certainly inspire me to make some strange cesspool of a map.
Personally, rather than pushing the random button fifty times until I come up with something I like, I prefer to think up a general description for what my level is, then look for synonyms to the words I thought up; commonly I'll go as far as to make up words based on latin roots. Stalactic Caverns, anyone?
Of course, if all the names you think up for your level still seem like any ordinary level of your theme, then perhaps your level just isn't unique enough. Try making a toy themed level, and I'm sure you'll think of names that'll really catch people's eyes.