Beginning today, WWE superstar John Cena and Bamm-Bamm will replace Fred Flintstone on the front of more than 8 million Post Fruity Pebbles and Cocoa Pebbles cereal boxes as part of a promotional ...

adding multicolored marshmallows, setting bear traps in the cereal aisle. Now Post, maker of the classic Flintstones-themed Fruity Pebbles, has created "Poppin' Pebbles," an explosive Pop Rocks ...

Now Post, maker of the classic Flintstones-themed Fruity Pebbles ... "Multicolored Flakes That Go Boom In Your Mouth When You Eat Them." Bamm-Bamm, all grown up, became Robert-Robert.

(Photo by Lane Turner/The Boston Globe via Getty Images) Fruity Pebbles fans can look forward to an exciting new pair of cereals to enjoy, for this summer only. If you want to shake things up with ...