The most infamous optical illusion 'Rabbit-Duck' dates back to 1892, but modern day artists have found their own unique ways to trick your eyeballs - two in one tattoos. Through strategic placement, each image comes to life and transforms with the client's body movement.
Most of the tattoo designs you see today are one of a kind, but these unique tattoo ideas take the cake. Not only are they beautifully executed, but the placing makes them even more special. Yes, we're talking about spine tattoos.