This is my first model! 

I designed my own "poop box for S1" because I wanted something unique. It's designed to hold magnets, but it works fine without them. 

Hope it comes in handy!

Additionally, I created a light version.

It's simple and quick.

https://www.makeronline.com/en/model/Cobra%20S1%20Poop%20Box%20(Ver%202.0)/237495.html?trackModuleType=10