[20 Dollar Nose Bleed]

This is a great idea, i've done it myself. Tattoos can be a great way to express things like this if they're done properly.

Both me and my boyfriend have matching Clandestine Bat tattoos. He has his on his tummy and mine is between my shoulder blades.
We picked the Clandestine bat because Fall Out Boy played a big part in us getting together but also we both love the design seperatly.
So if we ever split then we're still both going to be left with tattoos that we love and that dont HAVE to remind us of eachother.

Try to think like that - try not to search for something with too much meaning to it, just incase. Go for a design you both just really love. Get it done on the same day together and by the same tattoo artist. That way you can both bond together alot more over your tattoos.