I needed something to do this long extended winter, that didn't have to be precise. By dumpster diving I gathered materials to do a visible pump. The only items that I bought was a new plexiglass cylinder and a nice repro globe from a garage sale. Everything else is PVC tube for the body, modified an aluminum light shade, vinyl electrical panel channel cover, 1" pipe up through the center holding everything together, stainless screws, other misc. items. Light cord goes up the pipe to light the globe. Nice & lightweight & mostly weatherproof. I'll be attaching it to a 24" cement stepping stone.