Soaky was a brand of bubble bath with the gimmick that it came in collectible bottles shaped like famous cartoon characters. Since these characters came from all sorts of different studios, this resulted in some unusual pairings:

Here's Donald Duck and a naked Porky Pig in the same commercial:



Even more strange is this one featuring a team-up of Superman and Tennessee Tuxedo with a Richie Rich lookalike subbing as the Soaky Kid:



And here's the weirdest (and funniest, in my opinion) duo of all -- Dick Tracy vs Musky Muskrat!