Learn How to Build a Good DIY Rain Machine for $15 (& a Great One for $60) If your scene is calling for rain, don't wait for Mother Nature to get her act together. You can create your own rain and not spend a ton of money to do it. Here's a tutorial by Tom Antos that shows you how to construct two different rain machines: a $15 rig made out of a flat sprinkler hose and a sturdier $60 to $70 rig made out of PVC pipe.