Ambigram tattoos
Although they are not a new concept they actually have been there forever and has a tradition that is deep enough just to see ambigrams done as a tattoo. An ambigram is two words put together. For example Devil and Angel might be put together. Then when the word is read one way as said Angle. Then, when turned upside down such words is the word of Satan. It's very fun and creative tattoos and looks great.
Celtic Tribal Tattoo Designs
The design is very popular which has resulted in several large tattoo designs are the rebirth of Celtic tattoos. They are sometimes classified as a result of interest with the work of the dark black lines. But they are sort of a new tribe. Not redundant and obsolete old tribe which is a set of lines that everyone and their brother has.