Iron Man Repulsor Hands Smoke Effect

Hi everyone,

I'm currently doing an Iron Man foam build and I wont to add a bit more "spice" to the armor.

I wont compressed air to come shooting from the hands, to give the effect of thrust (flying kind of).

I'm not the best at explaining things with words so I drew a "plan" to maybe explain this more clearly.



So two compressed air cans on my back with tubing running from them to my hands.

But the big question is, how do I release the air from the cans when there all the way behind me.

Any answers are great as they will help loads :D

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