A simple, standard pink ribbon tattoo would get the point across perfectly, but I am always amazed at the other creative ways people find to express the sentiment. The tattoos below are beautiful. One twists the pink ribbon into the shape of a heart; another pink ribbon is surrounded by a tribal butterfly design accompanied by pink- and blackwork. My favorite is the angelic, winged pink ribbon with halo on top. There are endless ways of customizing the pink ribbon designs, and a quick Google search will lead you to websites brimming with ideas.