I am not ashamed to admit I love PVC pipe and I'm not a plumber. PVC (which stands for polyvinyl chloride) is amazing stuff. Sometimes correctly referred to as "Tinker-Toys for adults", these plastic pipes can be used to construct just about any kind of structure you need for very little cost.
Personally, I have created a laptop stand for my car, a camera stabilizing device and Capture the Flag "cages" for Lazer Tag. I am currently working on a shoulder-mounted rocket launcher prop that will consist solely of this plastic goodess, right down to the fake "optical" sight. People are coming up with new applications every day for PVC pipe and it is great fun.
Most PVC gizmos can be assembled quickly and easily. There are many sizes to choose from, and a plethora of attachments (elbows, T-joints, couplers, etc.) to fullfil just about any design you can imagine. You can find the telltale white magic at any hardware store and get lots of it for a song. Everything press fits together, eliminating the need for adhesive (which is also available) so you can reuse pieces in new projects on a regular basis.
If you decide to begin making PVC anythings, do yourself a favor and get some ratcheting PVC cutters. They cut quickly and easily and are a lot nicer to your body than using a hacksaw, which takes forever.
I know what I like to make with PVC, but how about you? What are some of your favorite polyvinyl chloride creations?