This one is a bit hard to explain. It's 52 real chicken wishbones.

The seller makes no guarantees that your wishes will come true, but they do guarantee that you will get 52 real wishbones.

Every day I find weird things on ebay, but this one is certainly up there. The biggest problem with this auction? Well, I'll let the seller describe the biggest problem for you:

"The biggest problem you may have might be whether, and how much insurance you should ask for if you are the lucky winner of this simply incredible auction."

Yeah.