Back when I was a kid, movie tie-in merchandising generally had some connection between the movie and the merchandise its name and characters appeared on. Oh, sure, there were exceptions — a box of cereal, for example, might be festooned with a character's face despite the fact that he or she was never shown eating it in the film. But in general, there was some logic behind it.
Not any more. Case in point: Spider-Man 2. Spidey is the whore of movie merchandising; he's showing up on basball bases, Super Soakers, "night-vision communicators", flashlights, LEGO sets... you name it.
But the zenith of Spidey Fever idiocy? Spider-Man 2 Pampers. Like infants in diapers have any clue who Spider-Man is and insist that their parents buy them the Spidey Nappies.