Skull tattoo designs are often used to mean a negative symbol and once considered a sign of rebellion that simple. But now is different and turns negative-positive.Skull Tattoo Designs: Probably the most common type is a tattoo of a skull and crossbones. It has been used in a number of settings, including a pirate flag and symbol of poisonous toxins. However, do not always have a negative meaning for those who wear them. This design was very controversial but gradually became more and more normal to see. And until now many people are wearing this skull tattoo. No little girls who wear them also.