Gift suggestions for an upcoming feline birthday blowout?

On Sept 1st, Allen, Rachel and Meghan will be celebrating their fifth birthday, Ralph will be four and Spencer and Heather will be three.

Any gift suggestions for cats who really do already have it all?

AC

How about finding a recipe for a cat cake? Or find one for some funky cat treats and form a cake from them?

Pat's (Plain Brown Tabby) treats!!!! Kitty Kaviar, Mackerel... and have your kitties tried Honeysuckle (also available on Pat's site) vs. Catnip?

Or what about a giant box from an appliance store?

Or what about some of Momofmany's (Auntie Em) catnip cushions/toys? Also available through Pat's site: http://www.catniptoys.com/brands/Aun...Creations.html

This will probably sound boring, but I celebrated a couple of cat birthdays last weekend, and the most popular gift was a new cardboard cat scratcher. I rubbed a little catnip over it, and they went nuts - in fact, one of them sat on that thing for a few days (it was one of the flat ones)! All this despite the fact that they already had an identical scratcher, but it was getting a little ratty.

A straw for each of them. Straws are the favorite in my house

Thanks for the suggestions so far, guys, I appreciate it! This is the first year my home has not included fosters since I adopted Allen and his siblings, and the first birthday since my decision to cease fostering all together. The stability this has brought to my group of cats brings me a feeling of contentment that is provoking a ridiculously strong desire to really go all out for their birthday, despite the obvious fact they'll have no idea what is going on and will actually be upset if I do anything really out of the ordinary.

I'm kinda tempted to finally purchase this cat tree 82 Inch Deluxe Cat Tree with Ramp, but I've already got so many, there's no place left to squeeze another one in.

AC

YES, and they're cheap too! Foldable mesh laundry hampers!
http://www.google.com/#q=mesh+laundr...w=1280&bih=717
You can find them in Walmart or even at some flea markets. Our boys love to "hide" inside. Make sure to cut the handles off though.

They especially like it when I put a sheet of tissue paper on the bottom for that crinkily sound.