LOL! (isnt that just a pnuematic piston?)
At the Vegas regionals some team went up to pit admin and asked for a "Reverse Flux Capacitor" on the PA system. XD
Our team is planning to build one a flux capacitor for our robot (provided we have the weight left over to add it on) based off this instructable
http://www.instructables.com/id/Flux-Capacitor/