Much has been made of the bondage aspects of early Wonder Woman comics.
But where's the talk about the Marvel Family?
Every issue--I mean literally every issue--has at least one story where the hero(es) are captured, bound and gagged in their non-Marvelous form. Every. Goshdarned. Issue. Fawcett City must lead the nation in gag sales.
Of course, gagging is a necessary story contrivance, given the nature of their powers. Still, it can come across as, well, kind of creepy to modern eyes, to constantly see children bound and gagged.
Of course, Billy and Mary and Freddy always managed to get the gag off in the nick of time...which probably says something about the knot-tying competence of the average criminal they faced.
Sometimes, though, the way they removed the gag was quite...well, freakin' painful.
Billy has been--surprise--bound and gagged, and stuck inside a "time capsule" not to be opened until the year 5000!!
Billy, though, doesn't mind living with the pain it takes to get out:
The Marvel Family. Pain and bondage. Your move, Wonder Woman!
From Marvel Family #33 (1949)