Interesting that you should mention tattoos in connection with Disciple; it seems that for people who don't realize just how widespread tattoos, including faith-based ones, are, it can evoke instinctively hostile thoughts even to the idea of getting a faith based design done, until, that is, they realize just widespread and how effective faith based designs can be in witness situations. (In North America, 59% of parlor clients are women, with 70% women in some areas, apparently.) And obviously one is going to be around people with tattoos - some of them faith based - at Christian rock concerts. If you eventually consider a faith based tattoo, especially to help in witness situations, there is a sense in which you'll be in good company but it really does have to be an individual thing and initiative.
(Re. WBC, I'm not sure who they represent except themselves.)