About this 3D model

I need a quick and easy way to posistion my rapberry pi camera. So, why not put it on top of an old 500ml soda bottle? I filled the soda bottle half way with water, but sand or dirt would probably be a safer fill material. No supports are needed, I modeled in a sacrifical support for the part that slides onto the bottle cap. The holes are for M3 screws, and are too big to be tapped or threaded. It's just a friction fit onto the soda bottle.