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Double post because these are some seriously creative flamethrower ideas haha
But the hairspray should have the little nob thing.

Hell, what would be even cooler is to take the default Spray Can model and tape a match to it, that would be some seriously Blocko-Style improvised weapons. I would love to see that.
There should be a lot more Blocko-style improvised weapons, so it looks like you improvised with what the game has, not what real life has and put into a modeling program.
Maybe a 1x3 brick with nails in it instead of a random wooden plank. Or a bow that shoots destructo wands at people. A Gun with a sword taped on the end for a bayonet. (right click or something stabs). Just some ideas.