I had a wonderful visit from new friends in Maryland. They were married in the rainforest of Belize by a Mayan priest. The flowers for the ceremony were picked by the priest and was a flower (specific name unknown) found only in Belize. The couple has chosen the flower as a symbol of their marriage and have plans to get the tattoo in very soft black and grey.
I think this is a great example of how to memorialize a relationship.