Ebay kinda sucks, with them taking out 10% of the sale... ick. Still, I've used it a few times on things I picked up ridiculously cheap and sold for a ridiculous amount. Like this sterling silver pen we found at a garage sale for 50 cents, and it was worth $100. Those are fabulous days.
Would you count in Etsy experiences? Because I have one of those.
My mom made an Etsy store a few months back - and while the store has quieted down a bit since then, it's been too hot here in the south to work in the shed to fill up the store pages - she made almost $400 within the first month. Just in 6 orders that each took no more than two days to finish, and with no real form of advertising. The only views that had even come in were from the tagged words in the site's search engine.
It's a wood-craft store - parents used to do tree removal and my cousin works at a lumber mill, so we've always had a bunch of really nice cuts lying around that were either free or dirt cheap - and I'm still amused that her biggest hit was the "cat climbing shelves" I put up... As a joke. Thank goodness they were easy enough to make several times over, or else should would have been maaaaad... :P