CryptoPunks are 10,000 unique collectible characters with proof of ownership stored on the Ethereum blockchain: http://www.larvalabs.com/cryptopunks They're an experiment in collectibles and rarity for digital items. In a weird but real way you can definitively "own" one of these little guys, then sell it for real money to someone else. As of this moment, all 10,000 of them have been claimed, and the average sale price in the aftermarket is $55 USD. Also, 1,419 bids worth almost $30,000 are currently pending. It's also been covered recently in a few places including here: http://mashable.com/2017/06/16/cryptopunks-ethereum-art-collectibles/#Ro1Oyp1ssiq9

One of the early users of the project suggested people on bitcointalk would be interested so I should post it. I hope I'm putting it in the right spot!

Happy to answer any questions and hope you like it!