I put too much plaster at the top of the rocket, it went unstable and nearly hit my house! Thanks God it didn't. The fuel was consumed almost instantly and gave tremendous speed to the rocket. I kept looking at the field where it should have landed, but couldn't find it. I would love to know where it really ended up.
The bomb was weird, firstly there was a POP which removed the cap effectively, then the rest of the fuel just burned. At least you could see the burn rate.