Sally, The Infinitely Extendable Bong/Water Pipe Percolator Attachment

thingiverse

Designed as a proof of concept, but functions remarkably well. This is an all-in-one percolator device, called Sally, that can attach itself to either a glass water pipe or another Sally unit. The percolator fits snugly onto a 59mm diameter lip, so scale accordingly if you want to test it out. Obviously, for this to work, it has to be printed in a flexible material.