Step 1: Supplyes
Vinegar - any kind will do
Bicarbonate of soda - baking soda
Airsoft bbs - optional - the boom scares them enough, the bbs are just for bragging rights
A small airtight container with a strong held tight fitting lid - NOT like a film canister!
A ziplock bag - you just need the corner
And lastly, two hands (have someone help if you only have one :)