Top and bottom caps for the hip canisters found on the some of the halo 3 ODST's. Made to fit 50mm PVC pipe with an OD of 55mm. Pipe should be cut to 100mm long.
NOTE: I don't own a 3D printer at this current stage, so I'm not sure if it is rotated optimally or what supports are needed if any, so I'll leave that up to you :)