Markets in everything: weird on-line commerce

How about:

...a Bag of Crap. The fabled and fetishized BOC costs about $8 and includes up to three random items from the warehouse, most of it likely to be useless, but sometimes, according to legend, Woot occasionally drops in big-ticket items like a 61-inch television.

Order here, but it is available only sometimes.  Here is a list of other unusual items for sale on-line.  Did you know you can project the image of a digital clock onto your wall?  Or buy a cow for a family in a developing country?