One dealer at the 2008 All-Star Fanfest in New York had a ton of 'em...
(Photo taken July 14, 2008. © Gary Dunaier. Link to upload on Flickr.com: here.)
The dealer who was selling these said they came out "a few years ago," and that he hadn't seen them around for sale that much and he was pretty much the only guy who was selling them. They may very well be fakes, but I bought a couple of Ty Cobbs ($15 apiece) because these were produced by the Highland Mint, and I trust them when it comes to authenticity.