Maru's Fresh Step commercial has a couple videos of Maru and his boxes and some other cute cat video viral favorites. How did a cat company not think of using videos like this before!? And Maru in a Fresh Step commercial about litter boxes (it's a box, right?)... purrfect!
Update 5/5/11: It looks like they had Maru's commercial video removed from YouTube. Bummer! Not to worry, though, here's the video where the clip in the commercial was taken from -- watch Maru and his big box action here!
(I'm going to leave the commercial video embedded below in case it starts working again...)