In his Hitchhiker’s Guide To Evangelism
  Bill Tenny-Brittian  addresses this issue — lots of tatts on Hitchhikers — by suggesting Leviticus 19:28 is not about tattoos and that there are good reasons for tatts. Some of them evangelistic.

Sometimes folks get tatts that express their own conversion or spiritual experience; others get tatts that provoke conversations and that lead to spiritual discussions.

Any stories from those whose tatts lead to evangelistic situations? 

Any other observations?