Stenciling is another option to add backgrounds and get a fine art look without having to be able to draw yourself. I love layering stencils with distress inks to create interesting and colorful backgrounds. Stencils can be used with almost all your art supplies, like colored pencils, pens, markers, and even paint. They are normally inexpensive and can be washed and reused making them a great versatile piece in your art stash.
For minimalists, I recommend looking for simple designs that can be used over and over again, like polka dots or various stripe designs. For everyone else the budget is the limit! World maps, forrest scenes, mountains, sunsets, even alphabets.