it can be dangerous
but if used properly it can be a great fun as well
i will provide you a simple design but you can go for complex one as well and yeah it run on small red cracker used by children.
Step 1: Materials
PVC pipe having 1 inch diameter
but thick enough so that only a red cracker can be placed inside it.
a drill to make hole or you can use screwdriver as i myself used it.
M seal or stone small enough to fit in the pipe
red crackers and match stick or lighter
Step 2: Making Canon
make a hole at one side leaving a space of .25 inch from end.
make sure that the hole is large enough to make the burning part of cracker out but not too large that the cracker comes out.
you may need to increase or decrease the size of hole as per performance so you can make it small but not big.
Step 3: Making the Throwing Part
if you are playing inside and have a aim then you can make round one as it has better stability.
so mix the M seal and make round balls big enough to easily pass through canon.
let them dry.
Step 4: Making a Base
to make, it aim towards the target and press in the sand or you can make a base and explain me as well.
I do know how to make complex ones but I need simple and better one.
Step 5: Loading
press from the front to make make it completely out using stick.
now place the round M Seal.
place inside sand and aim.
fire in the hole !!!!!!!