And the badass SHAZAMED-up! battle-cat version!
Use them all.
If Christopher Robin & Tigger, Calvin & Hobbes, Yong Sampson & Goliath cartoon (ok that was a lion but inspired the next); Prince Addam and Crinjer, Pi & Richard Parker, can all make it work, the comic book originals Billy & Tawny can too!
(argh was trying to get them all on one page, someone cut in)