Seeing these posts made me think of something... One year, after LOTS of snow and kids getting stir crazy, we sent the them out in their old snowsuits with their super soakers full of warmish water, with food coloring in it. We let them each mix up their own gallon jug of water, once the gallon was gone that was supposed to be IT, but they had so much fun we let em get away with one more, then I think one more after that.
They were supposed to only spray the snow, and not buildings or each other, but some accidents [heh, yeah right] and some tears happened, though they mostly managed to do ok.
Yes, the super soakers froze up, and yes, they got cold and soggy, but they wore themselves out and had a blast without major frostbite or turning each other blue or green.