Shure Battery Cap for Shure ULX and older VHF Mics

This thing was made with Tinkercad. Edit it online https://www.tinkercad.com/things/kBCvmHKwJM9

I was going to rework a cap that exists on one of the 3d sites but this one is too different. If anyone finds better settings or rework it, I would love to check it out. The original cap tapers as it goes down to the bottom of the cup. This is my first project and wasn't sure how to do it. I needed the cap!