Dogic

5 years ago the only way to obtain a Dogic was to hope that somebody put one up for auction on Ebay. The typical price: $400.

A couple of years ago Uwe Meffert started making them. Unfortunately, he's completely out of stock and will not make them again! Our advice: when Mefferts.com says a puzzle will be offered for a limited time - get it right away. And if you're smart, you'll order 2 copies - 1 for trade.

http://sites.webec.com.hk/meffert/index.cfm?fuseaction=detail&id=1199889&product=154