4th of July - Less 'Boom' Alternatives

So it’s a bit late to do a 4th of July at MakeICT, but what are some alternatives to giving a kid an M80 and a cherry bomb that you guys can think of for kids to light off?

A few that have come to mind:

-Mentos and Coke

-baking soda and vinegar volcano

-Elephant toothpaste

-water bottle rockets

-cardboard tube air rocket

-helium cloud generator

If you do the elephant toothpaste, go big!

Hmmm… if these aren’t very loud, we might be able to do a sensory friendly 4th.