Munkstein's forthcoming, $70 Cthulhu mugs are billed as "official" which actually sounds kind of sinister, in that it implies that there's a nest of true Elder Gods cultists who are in a position to grant such a designation.
Official or not, they're pretty great, with a lot of fine detail; if you prefer a less ornate version, the store has a wash version and a mug.
Cthulhu Stein – Full Color Pre-order
[Munkstein]
(via Geekologie)