I got the “A” several years ago. I went back some time later and had “Atheist” added to it. I got tired of people mistaking me for an Alabama football fan and fist bumping me. I don’t like football. You would think that diehard AL football fans would be able to distinguish that it is not the same “A” symbol but I quickly learned that they don’t. ?
Infidel works better for me because it can also inform politically and socially indoctrinated twits. Hard to do for one who rejects tattoos and jewelry. Being a sucker for t-shirts helps.