1) Tattoo, tattoo

I've got an 'A' tattoo myself, and I think you should go for it, as long as you're 100% sure. You have to imagine yourself 50 years old with it,. Will you still love it as much? Hm?
Make sure you take a trace of the symbol, you don't want ANY ONE doing that thing free hand.
2) I made my necklace from an official key ring, I just took the A symbol off.