how can you make a cool little fire explosion?

Question

with household stuff that wont blow up my house
i want to be able to do it in my back padio so it cant blow up huge but still makes a nice boom
(details if ya can)

Answer 1

Hmmm, well I could tell you how to make a pressure bomb using a two liter bottle, but honestly, you sound like you're up to no good, so I won't.