The title says it really, it's a dice box but the dragon's mouth opens. The mouth has a 3 stage ratcheted hinge so it can be set to open, half open, or closed, and there is enough space for one set of standard-sized dice. 3mm holes are left on the flat face of each half so pegs can be glued in for a bit more strength when assembled.

It is already separated into multiple stl's for easier printing