DIY: Make it rain sugary treats with this candy cannon

Are you sick and tired of handing out candy on Halloween? Every time the doorbell rings you have to drop what you are doing, answer the door, and offer the costumed kids on your doorstep the sweet snack of their choice. But what if there was a way to automatically distribute candy in a fun and exciting way? Then put your DIY skills to the test and make this compressed-air-powered candy cannon that literally makes it rain candy.

According to The King of Random for Instructables: "It uses an electrically activated in-line sprinkler valve, rated at 150 PSI, as the trigger mechanism to release compressed air through the barrel.  Just charge the system up to around 150PSI, and press the detonator button to make it fire!

I built this one for my son's 3rd birthday party to propel a payload of candy to an altitude of around 100 feet, at which point the candy begins to spread out into a giant could of sugary treats, and drop back down, making it rain candy! 

To learn more, read "Make It Rain Down Chocolate! For Real! Here's How to Make Your Own Pneumatic Candy Cannon!" from Instructables.