1. Not a G1
2. Is a G3
3. It's an Earth pony
4. Has more than one hair color
5. Is Pink
6. My pony doesn't have a gem or 3D symbol
7. My pony does have flowers in the symbol.
8. My pony doesn't have food symbols.
9. Not Cheerilee
10. Not Spring Fever
11. Not Pick a Lilly
12. Not the 2008 Fair Pony
13. Does have tinsel.
14. Not Secret Wish
15. Not Bunches O Fun.
16. Not Beachcomber
Hints:
Has a gimmick
Has glitter
Someone's guess was very close... .
Ponyfan