Rollers can be used to create unique finishes on drywall. Whether it's a stippling effect achieved with a normal paint roller, a double slap brush imitation, or leopard print from an experimental roller head you found on Amazon, rollers provide a world of options for a homeowner with a do-it-yourself attitude. Because there's no need for spray guns and air compressors, rollers can also offer a less expensive option for interesting textures.