You could try to get your hamster to chew on her toys by using a tiny (stress the word tiny) amount of peanut butter on them and wiping it off, leaving a tiny residue of peanut butter on their toy's. You have to make sure you are using organic peanut butter made out of 100% pure peanuts. Again, you don't want to leave a big glob of peanut butter on her toy's just enough so she can smell it and start chewin!
Hope you can get her chewing! Good luck
