This is the medal I used as a finisher medal for the "triathlon episode". It is based on rigid groups using three points of a female character. So the medal keeps the geometry (hopefully). It also worked for male characters. Sometimes you have to adjust the geometry so it is not inside some clothes. In the example picture I changed the silver and golden material to a metallic shader. Be aware that smoothing or subdivision surface algorithm does not only create a round shape it also changes the H-character in the middle of the medal a bit. I consider this as jewelry :-)