The real problem is the detonating device. Cell phones next?? You must register. No more throw aways....Just wait..
There are all types of pressure vessels that could be used as well. When I was a paint room foreman, I was surrounded by pressure pots from 1 pint size up to big old 25 gallon monsters.
We had one of the big ones develop a crack in the lid once and had to evacuate the paint room, shut off the compressor and wait till the pressure equalized to replace it.
I doubt that, since you can easily make a detonator out of a pair of walkie talkies, or a couple of radios, or egg timers, etc.