16mm Pipe Construction Kit

Building on the Soda Can Bong, I decided to make a bunch of pipes that could fit together. Maybe you want to build a bong that 4 or 2^n people can smoke at once. If you want this split into individual pieces, tell me. Otherwise, most slicing software can do it.

Pipe sections have walls 2mm thick except at the adjoining sections where they are 1mm.