What Can i get my friend with Leukimia?

I just found out one of my best friends has it and i was wondering what would be a good gift for her. Shes going to be in a Children's Hospitable for sixth months and me and my friend want to go like every other week to see her. I know i cant get her lotion or spray stuff, and my idea was to get like the two pieces of fleece and tie it together (something representing something me and her have to remind us of each other) and i am going to get her the really soft socks, but i am willing to get her some good presents worth money. (not like way more than $40 though lol) But If you have any idea then please help :)