If you get bored while on your time off, you can always do this. All you need is an empty can, a sparkler, lighter and duct tape, oh and about 3 oz of black powder.
We got a little bit bored today. 
A mate of mine in MT used to do that. Every 4th July he would have been round the garage sales and bought loads of toys and then we would spend all day blowing the [zb] out of GI Joe and Barbie. Absolutely lathered up and playing with explosives 
Gawd bless um
I was going to buy a garden gnome today and blow it up but the boss wouldn’t let me. She said it was cruel!!!
However, we did use a pair of cans taped together with duct tape and a half pound of powder tonight and set it off in the dark. You have to go about halfway through to see it but it was a hell of a bang and the flash lit up the neighbourhood.
I bet the neighbours love me!!!