I have a dog named Ruby too but she is a red-headed pit mix (super sweet big girl I vote for that one because I like the Ruby but also the side-ways heart is unique!
I missed the "ruby" on heart, but still like piggy. I have two baby Shih Tzu's and can't decide what to get to symbolize them cuz no one can tell what they are. They don't like any two other Shih Tzu's I've ever seen!