I'm a new cat owner. My boss has 3 cats, all rescued. She's been so supportive to me, giving me lots of cat advice, giving me free time off to take Daryl to the vet, and she gave Daryl a goodie bag full of treats, food, toys and a collar. Since Christmas is coming, I'd like to get her and her cats something special, but I have no idea what to get that she doesn't already have. Any ideas?