My army pony is Princess Serena. (Big surprise, right?
) I have her, her wand, and a ton of handmade Serena items (a plaque, a jewelry box, a mini dangle plush, several pieces of artwork, a princess ponies keychain...). I hope to collect her variations and to continue buying (and being delighted to receive) customs, artwork and crafts related to her.
In a more general sense, I also collect blue ponies with red, orange or pink hair. I have Cherry Sweet, Baby Drummer, Tropical Breeze, Royal Blue, Squeezer, Coco Berry, Posey Rose and Waterfire.