Flat feet
Butterscotch
Blue Belle
Minty
Snuzzle
Earth ponies
Seashell
Bubbles
Posey
Cherries Jubilee (upgrade, must be NM/Mint)
Unicorns
Twilight
Sunbeam
US Gusty
Pegasus
Sprinkles (and an upgrade for her duck)
Heart Throb
Rainbow Ponies
Tickle
Starflower
Confetti
Pinwheel
Parasol (an upgrade, must be NM/Mint)
Babies
Baby Lemondrop
Baby Firefly
Newborn twins
Milkweed and Tumbleweed
Sniffles and Snookums
Jangles and Tangles
Rattles and Tattles
Speckles and Bunkie
Sticky and Sniffles
Sandcastle and Shovels
Puddles and Peeks
Big Top and Toppy
Jabber and Jebber
Sundae Best Ponies
Swirly Whirly
Drink and wet ponies
Baby Snookums
Starlight Baby Ponies
Baby Mischief
UK Princess ponies
All of them, except for Aquamarine.
All of their accessories, also Aquamarines.
Playtime Baby Brother Ponies
Baby Countdown
Baby Drummer
Baby Leaper
Baby Waddles
Baby Racer
Accessories and stuff
All accessories belonging to ponies on my want list.
Sundae bests combs and barettes
G1 Puffy stickers