During the “golden age” of television commercial were often integrated into the show itself (we are seeing more of this today). In this segment from the fifties, Buffalo Bob Smith, Howdy Doody, and Clarabell the Clown do a live TV commercial for Hostess Sno-Balls cakes. It is not heavy on the Halloween, but you do get some amazing product shots of Sno-Balls.
I have eaten many a snowball, but I have never seen them in a package that look like these. Check out that classic Hostess logo.