My three got together and made one list so they don't ask for the same thing twice...they share real nice, lol.

Scratching Post
More FatCat toys
Crinkle Mat or Bag
Feffer (that would be 'feather') Sticks
The Furminator
Treats, treats and more treats!

They even included the dog and asked if they could get him a new Knot toy.