There are no uni-taskers. I have been told that suitably rigged fire extinguishers can act as mortars to propel projectiles, baited fishing hooks, etc., several hundred yards. The empty would make a good weight, earth or snow tamper, improvised hammer, core to coil or bend stuff around, and that is just a start.

Even Alton could form some dough on the thing, or maybe use it as a big rolling pin, to prepare some Good Eats.