I'm not ashamed to admit it. I'm a Brony. Big fan of the new My Little Pony series. I took some time to get screencaptures of the ponies and did what I could to draw out their Cutie Marks for use on buttons, and I think this result is successful!
From the top going clockwise: Princess Celestia, Applejack, Rainbow Dash, Princess Luna, Rarity, Pinkie Pie, Nightmare Moon (Alternate Luna), Fluttershy, Twilight Sparkle.
Applejack toy, comb, and quarter all in place for size reference