I'm glad I'm not the only one asking for a Pony character.
In my case, it's my character Lex Legis:
While the base of his horn is the same color as his skin, the rest of it is a bright, blood red, with the change in color being abrupt (due to that horn being a graft). He also wears a plain, silver circlet on his head. Like most ponies, he doesn't wear clothes, but does keep a few small bags (filled with gemstones, as spellcasting aides) slung across his back.
His cutie mark - that is, the tattoo on each flank - is of a podium in front of an amphitheater.
He's fairly dour, more prone to scowling than smiling.