I had an idea for the "Keep It Cool" challenge for a simple misting fan from scavenged parts. I put this together in about 15 minutes and am really impressed with how well it works. This model is really just a "proof of concept". now I just gotta get a bigger fan..........
I'll update this with better pictures once I get a bigger fan. In it's current configuration the fan has an effective range of about 4 feet which is good for 1 child but not so good for multiple and they end up pushing and shoving for positioning. With a big fan and mounting it up high this should work great.
Unfortunately my home internet connection bombed yesterday so I wasn't able to submit this in time.
fish tank air pump
misting nozzle (spray paint tip)
Step 1: Cut & insert tubing
now that you have your tubes, take the cap off of your water jug and drill two holes in it that are slightly smaller than the tubing. insert your tubing into each hole. the tube that will run to the air pump should only stick into the cap by an inch. the tube that will run to the fan should be able to reach the bottom of the jug .
apply silicone sealant around the tubing on both the inside and the outside of the cap. this isn't for leaking. this is for getting a good air seal.