The missing brother "Pow" , from Rice Krispies,"Snap, crackle, and pop"

The trio were used in conservation messages during World War II and briefly re-imagined as superheroes in the early 1990s, but later returned to their original elf-like form. Likewise, there was briefly a fourth gnome [1] in the 1950s named Pow who represented the explosive nutritional value of Rice Krispies.[2] @Curionic