When I was a kid (back in the 80's), my family would attend a big family reunion every summer at a park by my grandma's house. Sometime in the hot afternoon, there would be races and other contests to entertain the children and finally, the contest to top them all...bubble blowing.
My grandma would crack open an entire box of Hubba Bubba (since we all knew it was the best for blowing bubbles) and all the kids would fight over the packs of gum inside, until we all had about three pieces crammed into our tiny mouths.
After about five minutes of chewing, we'd all get a few tries to blow the biggest bubble we could and the winner would get some sort of prize (usually more gum). One of the big kids always won it, but the little ones were all happy to have gotten a few pieces of free gum. ~ Tyler from Utah