This is a .50 Cal penny bottle opener with a twist off bullet for ease of use. I made these for a company picnic as a give away. They where a hit! So I figured someone else can be a hero of a party.
I printed the 2 items in different builds. The bullet I used HatchBox red and printed it with the point down. Use Ultimaker Cura and just select the generate supports. The base I used HatchBox Black and printed it right side up. Nothing special here.