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Candle Cannon

They have smaller versions of this you can buy on the internet...or you can make your own. It's basically just a fat tube with rubber sheeting on one side, like an inner tube. You pull it back and let is snap, and it propels the air into a ring formation that travels quite a long way. The smoke isn't necessary; it's really there just for visual effect. The ones that are available retail have a trigger mechanism.
 
Air cannon...

I have the smaller version of this. Lots of fun around the house, but the cat REALLY hates it!
I never thought about filling it with smoke to see the vortex it creates.
Guess I have something to try this weekend.
Thanks for the idea.

JC
 
I have the smaller version of this. Lots of fun around the house, but the cat REALLY hates it!
I never thought about filling it with smoke to see the vortex it creates.
Guess I have something to try this weekend.
Thanks for the idea.

JC
Might want to try dry ice...it looks like that's what they may have used.
 
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