Actually, I was thinking of making Time Turner the sort of 'Big Mac' figure in this situation, much like how Berry Punch has Ruby Pinch and Pina Colada for younger sisters and Derpy Hooves/Ditzy Doo has Dinky Doo as a miniature counterpart, which could make up the Cutie Mark Crusader counterparts.



My set-up so far is:

Lyra Heartstrings = Twilight Sparkle (Signature Unicorn)

Derpy Hooves/Ditzy Doo = Rainbow Dash (Signature Pegasus)

Berry Punch = Fluttershy (She's just as jumpy, if not more so)

Bon Bon = Pinkie Pie (Her voice is never the same. That's got to be fun at parties. Weak reasoning, I know)

Golden Harvest = Apple Jack (Only with vegetables instead of fruit)

? = Rarity



I realize it might seem odd with having Rarity be the missing counterpart as opposed to Fluttershy or Pinkie Pie, but I'm not sure if I want another unicorn or pegasus, as even though a character such as High Style, Powder Rouge, or Roxie (All members of Photo Finish's crew) would fit well, they're all earth ponies again. Whereas Vinyl Scratch is a unicorn, she kind of has a niche and might be a little tough to characterize.



I'll update you, if I find a good sixth soon.