Redirect the cat's attention to toys that the cat is allowed to play with.
A loud 'No!' should accompany any attack on fingers.
100% of family members need to respect this rule 100% of the time....it can be fun to play with kittens with your fingers....but there must be NO exceptions.
Help Burn off a cat's excessive energy/ prey drive with appropriate toys.
This toy for a cat is like a porno mag (I mean the Internet - gosh I'm getting old) to a teenaged boy.
Highly, highly, highly recommended (the cat toy