This is mold to create a big plug.
Length 80mm, shaft diameter 60mm, widest diameter 80mm.
You have to print to parts and screw them together with M4x25 machine screws and M4 nuts, or you use guide pins and clamp the two parts together during the molding process.
Fill it with silicone or wax to create your own plug sculpture.
Wet sanded (400 & 1200 grit) and additionally polished.