There are a lot of strange things for sale on eBay. You can buy an expensive car, a complete Star Wars Pez dispenser set, a toilet seat or this awesome 1973 Scooby Doo lunchbox.
I recently listed this lunchbox, and while doing some research I found that mint condition models complete with thermos are listed at well over $500. Mine is far from mint. What kind of weirdo kid would preserve his lunchbox like that anyway? I was more than happy to sell it for $50. It's crazy what "worthless" stuff in your house people are willing to buy.