Should you find yourself preparing a massive spray paint project, you're probably going to need a massive amount of spray paint! Sure, you could juggle them, or throw them in a bag. Or carry this ginormous spray paint monster backpack.
The Black Ops Version 3, by Sprayground, has room for a staggering 22 cans of paint. That is a lot of paint. Perhaps you've been commissioned to redo the Sistine Chapel by a young new hip hop Pope. Perhaps you're venturing out into the desert, and are afraid of running out of spray paint, and are bringing 22 cans just in case. At any rate, the padded bag not only offers ample room for paint, but a laptop sleeve, plenty of compartments, and is crafted from tough ballistic nylon. Alternately, you could only bring out one can of spray paint, and fill the rest with air freshener. [Sprayground]