DodgerGreywing's ASOIAF/GOT sigil! Dodge isn't into Game of Thrones, but I made one of these anyway. I do what I want.
House Greywing
Sigil: Am osprey gryphon, sejant on a field of argent.
Motto Cynicism and Wit
I used vectorish.com/griffin-vector.html as a base and heavily modified it.