Quit being fucking nerds. Of course anything that shoots freezing gas will be improved. You can apply it to ANY weapon to increase badassness.
A fucking ninja star that releases the shit on impact would be equally if not more badass.
Freezing knumbchucks.
A bullet that as it enters releases the shit and freezes your innards.
A jousting stick that freezes the other rider.
A extra cold sharp icecicle.
Endless possibilities.