My brother just passed me the link to halfbakery.com, a site where people publish all their good and crazy ideas in a large range of different categories.

You can find ideas such as the Forever vibrator - charged with a gentle back and forth shake, the FuBongTon- a futon with ‘bongarms’ or Baby Popcorn based on babycorn.

You can vote and comment the ideas as well, but the site is not based on tagging.

Who knows, perhaps someone could get rich on some idea there, or at least get some inspiration :)