My original inspiration for this pony was "wear your heart on your sleeve." But that didn't work out as a cutie mark, so after some help from my sister, I decided on a heart with a needle and thread, with a gold shine around it. (It's covered by her hair, but it is underneath.)
She took a lot of work, but I'm happy with the way it came out! I think I might add a longer trail of thread, though. (And probably will color the body lines at some point.)
Also, the light pink in her hair is colored unevenly on purpose.
Her name is Winter Sweater, because she likes to sew. She usually just goes by her first name, though.