That's what we call it - her crack thumb. She is addicted to sucking her thumb. If her mind is engaged in something else, that little bugger just sneaks its way into her mouth and boom - she's sucking her thumb. We have been trying to get her to stop ever since her big girl teeth came in but it's hard for her. So I created this little cover to help her remember to keep her thumb out of her mouth.
I've figured out how to link a pdf file so I have it up and available on Ravelry. I made Hobbit's out of the Andes yarn I had in my stash.
Hobbit loves it and it has really helped her stop.