The collar bone butterfly tattoo is a beautiful and delicate design that is becoming increasingly popular among tattoo enthusiasts. It is an especially attractive choice for women because it is in a location that is both visible and easily hidden. The design is usually quite simple, often featuring a single butterfly or two, but can be more complex if desired. Commonly, it is placed on the collarbone, but can also be placed on the shoulder blades, ribs, or upper arm.