LOL!
That's the mug!
(I also have one named 'Mouserschmidt' complete with little mouse sillouhettes on teh side of the plane and a cat tail coming from the plane's tail.)
Well, take good care of it. Apparently it is rare. I did a search and the only Kliban "Mouserschmidt" anything that I could find was a "rare Mouserschmidt sweatshirt" that was being auctioned off (and the page is no long viewable). No Mouserschmidt mugs to be found anywhere...not even in eBay. Lots of other Kliban Cat things on eBay though.