Hi A.,
It is a good thing that your little one has been turning away the pacifier; don't push it on her, but you can keep it handy if she wants to use occasionally. Some kids will try to keep them forever and then parents have to fight to take them away without doing emotional damage. It can become a nightmare.
As for sucking on her hands, its probably just something to keep her busy for now. More than likely, considering how young she is, she will stop it on her own in a few weeks. They always move on to something new when you least expect it. I wouldnt be too concerned about it. Keep her hands clean while she is doing this.
If it does go on, you can put socks on her hands. Stores always have the hand booties for newborns so they don't scratch their faces with their finger nails. I have never used them for my kids; it is a learning experience for them to touch anything they can - I never wanted to take that away.
Good luck and remember, most things she does now will only be temporary and she will move on to something else soon. Enjoy every day and every new experience.