For CO2 canisters, I think the most you can do is spray yourself with air. I don't believe you will end up with something explosive, other than an air bubble blasting a beverage into a mist. The CO2 canisters are super durable and often metal. It's more like compressing CO2 in a thing like a car tire. CO2 isn't flammable or explosive, it's just pure carbon dioxide pressure in a container.
We're basically talking about small tanks of plastic or metal compressed air for spraying things here (ie: Paint ball), but not the ones that use a chemical to create CO2 when depressurized which can explode because it's an aerosol can (ie: computer compressed air). Even then, you'd probably have a hell of a time figuring out how to make a computer compressed aerosol can explode without insane damage done to the can.