I used white tall kitchen twist-tie bags because they are totally rectangular.
The cheapest spray paint you can find should work fine. I paid 97 cents for a can in the examples. You will need flat black and a lighter color for the markings. I used grey primer here.
Tape and Box Knife
You will aslo need some tape. Duct, Masking, Packing…Any wide tape will do.
What a great way to recycle. Make a target out of some used cardboard and shoot it full of holes. You need a piece that is at least 22 x 32. Best if that is one complete panel without the folds and cuts.
Stencil that you can download HERE or you can make your own.
A paint pen is an optional but fun item if you want to get creative.