My most recent attempt at healing her fingers was found in the cosmetics aisle at Wal-Mart: exfoliating gloves. When I catch her with her fingers in her mouth, chewing away, I make her put them on.
It seems as though little sister has picked up on her big sister's habits. Gracie, as of late, has found much entertainment in putting her little fingers down her throat and gagging herself. It is not a pretty sight as she loses, what appears to be, half her bottle in the process. Gracie faces a similar punishment when I find her resorting to these bulemic habits...winter gloves. So, here is a picture so I can always remember my girls at this strange stage of development.