Itching to make your own guerrilla-style street art on the side of buildings, freeway overpasses, and abandoned billboards? The beauty of street art is that you don't need an expensive canvas or frame to display your creative expression. Computer paper, masking tape, and oil-based markers are all you need to make your artwork. For the sticky adhesive that will stick your paper artwork to a smooth wall surface, all you need is wheat flour and water to make the wheatpaste.