The Dogic Puzzles are Icosahedrons and these puzzles are extremely rare. Currently, each piece is worth about $500 (USD) on eBay.
For a decade the Dogic had been sought out by many and sold for extremely high prices, so Mefferts produced a lot of Dogics for a discount so the price would be more reasonable, but 2 years later they rose to the same high price again.
In this situation, Mark Segedin decided to design his own Dogic prototypes. Karl-Heinz Diekmann helped print the pieces for Segedin. This is not the only case of making Dogics at home; many have suggested privately remaking this puzzle (even hand making and casting was discussed). Until Segedin created his Dogic, the common opinion is that Dogic puzzles were too hard/too complex to make.