I haven't been keeping up with the game updates 100% so if this is already a thing I apologize. I think that if you want to start a gang or group (crime, cars, dance, whatever) you should be able to design a tattoo that only members of you gang or group can get. This way it is easy to identify who is in your group. For crime you can know who is safe to talk to about your crime (in prison for protection or on the street so you don't snitch). This is a very basic idea but I think it could benefit the game environment quite a bit. Just a quick thought I had, and I thought I'd share. I'd love to know what everyone thinks, all feedback (even negative) is welcome and if anyone has ideas on how to improve this function please share :).