1968 brought the world (or at least a small part of it) the Wild Animal Surprise Box, a more personal sized box of bubble gum:
Said to measure 2 1/2" x 4 inches by a recent seller, there only a little more than a half ounce of gum inside but I'm not sure what the surprise was. I make the height to be about 3/4".
That gorilla looks a lot more enticing than your standard Bazooka box, since the latter was aimed at moms in the supermarket and not a kiddie consumer. When baseball season waned, Topps would put some odd things on the backs of the Bazooka party boxes. This Toppscience panel dates from 1966-69:
I'm all for science but..... NERD!!!! The dating can be derived from the curved Topps logo on the back and the Brooklyn address on the sideflap. Remember I posted a guide to dating Topps items a while back...
Of course nothing beats the 1971 O-Pee-Chee Bazooka boxes with hockey cards on the back, courtesy of Bobby Burrell:
Those are miniature versions of the '71 hockey cards, blank backed, of course. Super rare and often counterfeited, the Orr card is one of hockey's most sought after collectibles. That little logo on the bottom right flap must be the printer: