Summary

This thing was made with Tinkercad. Edit it online https://www.tinkercad.com/things/lP2MsrlDnYt

:This is a silicone mold. You will want to use some filament in the guide holes and clamp the mold together to keep it from leaking. Acetone vapor bath is recommended for a smooth finish. I use Smooth On food grade silicone but any brand should work.