It’s easy to make your own Vamoo stand to hold your phone above your paper. All you need is a piece of cardboard with a hole cut in it for your phone’s camera and two cereal boxes or hardcover books:

If you’re left-handed, just reverse the placement of the books or cereal boxes and you’re all set! If you prefer, you can also buy a simple stand for your phone (recommended model 1|recommended model 2).