At the time it was prohibitively expensive. But the desire to have an undo-button for badge choices is strong, and thus the tattoo removal gun was born. These days you can pick up one of these ...

Jerod Harris/Getty Images for Uber; Romain Maurice/Getty Megan Fox is a fan of Machine Gun Kelly's dramatic blackout tattoo. In fact, she thinks it's "really elegant." While appearing on the most ...