Someone - I think it was Bill Judge - had them at the convention this year. I picked up a couple of them at one of the trading sessions. A couple of different colors are currently listed on eBay. The Auction says they are not listed in TCR.
Here is a link to the auction (not mine):
http://cgi.ebay.com/ws/eBayISAPI.dll?ViewItem&category=63756&item=6107380289&rd=1

Chas