As part of a 3D-printing course I created this sigil ring. It is based on the House Stark sigil of the HBO series Game of Thrones (based on the books of George RR Martin).
I printed 'SigilRing_LargeRingSmallSigil' on the Form2 and it came out rather nice. (unfortunately it does not show on the pictures, bad camera/lighting FTW!)
I also included two other versions, both with a larger sigil (so they should print even better) and one with a smaller diameter.
Make sure that there are no supports on the top side of the sigil!
Sand away the areas where support touched the ring with a small needle file.