The Trans Feminist fist symbol, from http://commons.wikimedia.org/wiki/File:Gendersign.svg , modified to be a 3D charm bracelet. See http://en.wikipedia.org/wiki/Transfeminism .It's kind of big so I scaled it down to 0.25x to print for me, but scale however you like. The svg file is created in inkscape and you can re-export with a different height if you want :)