This isn't exactly TOOL related, per se, but it saves you the need for some tools.
Today while I was hauling some firewood back from the bush I rolled one of the tires on the ATV trailer off of the rim. Well, not off the rim, but it broke the bead and was flat as a pancake. I didn't have a very heavy load and only had maybe 300yd left to the house on fairly decent trail, so I just drove it back like that. I lack any kind of tire mounting equipment, even for little 8" rim trailer tires, so I finally got the chance to use the old redneck method of gasoline and fire to seal the bead again. Worked like a charm, and I even have all my facial hair still!
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I'm sure this is nothing new to many of you, but I'd never heard of this method until a few months ago.