kropotkindersurprise:

socialistguineapigs:

dingusbaggins:

Wtf kind of spray can is that

I think it’s a fire extinguisher

You are correct. It’s a fire extinguisher refilled with paint, they’re good for stuff like that. See my fire extinguisher tag for more examples, like this gif from Milan: 

There’s a tutorial by Katsu how to make and use one [here].