Combos, officially called Combos Snacks, invented in the mid 1970s, are a snack food created and distributed by Mars, Incorporated, and sold throughout North America. They are cylindrical tubes of cracker, pretzel, or tortilla, available with various fillings. Combos Snacks, invented in the mid 1970s, are a snack food created and distributed by Mars, Incorporated, and sold throughout North America.[1] Though the pretzel form was produced first, Combos were first released in cracker form. They are also available with tortilla shells. read more