If I had it to do all over again, this hilarious "ALS Ice Bucket Challenge" is the way I would do it. This challenge is done using a shotgun and a Styrofoam cooler full of ice water. In my opinion this is the redneck way of doing the challenge and I'm not sure, but these two guys might be related to me. Check it out.

AlS Ice Bucket challenge and a 12 gauge shotgun