Film Canister Foam

You are going to need:
Film canister
Baking soda
Vinegar
Food dye
Duck tape or paint to decorate
White vinegar
Toilet paper

Take off the lid of your canister , paint the canister ,or cover it with duck tape.

Fill up the canister 3/4 of the way with vinegar. Then, color the vinegar blue.

Put about a teaspoon of baking powder into a square or toilet paper. Then, twist it up.

Place the toilet paper into the canister. (I had to change the toilet paper and baking powder). Quickly put the lid on and shake the canister.

After you shake it you get blue foam. This is what it looks like on the outside when it is foaming ,and inside after it is finished. I recommend having some friends over and doing many at once. You can try it with larger containers and mix up the proportions of baking powder and water.