If you have a larger phone and struggle at times on the course or range (or everyday life) to grab a quick picture, a pop socket is your answer. If you want something small to prop up your phone to view things, it works well for that too.
They are available in stores like Best Buy, and all use the 3M adhesive to stick to the back. This also makes it easy to remove, and many are saying it can be reused by simply rinsing the sticky section off.
The stability for typing, taking photos and shooting video can really come in handy.