A nautical star, on my right upper arm!
Early on sailors navigated by the stars at night and the north star became the symbol for finding ones way home. Once you know where the north star is you can point your ship in the right direction to get home. So the star became a symbol for finding ones way home or more symbolically even finding ones path in life.
I am not a sailor and such, but as for me, this nautical star of mine represents a guide through harsh time. :)