pneumatics , pistons etc. in costumes


Well-Known Member
I wanted to see what everyone's experience was with pneumatics in costumes. I am planning a costume that will need some movement in a couple of arms where I couldn't use my own. I have hit up google and instructables on several things from converting screen door air rams to very nice and expensive pistons.
I wanted to see what anyone had used and maybe options I hadn't thought about yet. I will be starting a build thread for the costume as soon as I get a bit further along.
I'm looking for simple controllable up/down movement basically . Nothing fancy just a good way to articulate 2 joints in an arm from down below under the body/costume.

thanks for anyone's input,
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