How to make a simple Air Horn. These horns are LOUD! They can be scaled up as I show in the video, but be aware that the bigger you make them the more air they will take to function.

[Rick Osgood] has been busy making more scaring gags for Halloween. This week he’s sharing great ideas for an air horn and pneumatic jumping skeleton, both actuated by 24 V sprinkler valves. These two ...