helium shovel

A ubiquitous piece of equipment used by construction crews, ostensibly for digging holes, that requires the operator to lean on it continually so it does not float away due to the gravity-defying materials from which it's made.

Foreman: What the fuck am I paying you for? Get your ass in gear!
Jimmy: Working the helium shovel, boss.
Dave: Strap that thing down; it's time to go to the gas station for some coffee and a porn break anyway.