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I was wondering the same thing Jane!
Just tried this. You need to use a big thick glow stick. The skinny ones do not work well.
I am goning to try this with 16 little ones is it goning to work? Otherwise i am goning to buy more or a bigger one
I tried it with the small glow sticks ... it worked the first time but it rained and washed all the glow down to the bottom ( I live in the desert so I didn't expect that) then I tried it again with another small glow stick.. it didn't work at all.
My granddaughter and I tried it with a 6" glow stick containing 9.5ml liquid and regular metallic glitter, approx. half of an 0.12 oz vial. She was very happy with the result.