Post Hostess Donettes cereal features Donette-shaped corn, oat, and wheat cereal with a powdered sugar coating, while Post Hostess Honey Bun cereal features Honey Bun-shaped corn and oat cereal covered in glaze.
Both cereals can be found at retailers nationwide. If you're having problems locating them, you can find them online at Walmart for $3.98 per box (here and here).
Photo via Post.