Certain G1 baby ponies came with diapers.
Came with Baby Firefly, Baby Surprise, Baby Blossom, Baby Cotton Candy, Baby Glory, Baby Moondancer, Baby Applejack, Baby Shady, Baby Lickety Split, Baby Ribbon, Baby Lofty, Baby Gusty, Baby Heart Throb, Milkweed and Tumbleweed, Sniffles and Snookums, Jangles and Tangles, Doodles and Noodles, Dibbles and Nibbles, Rattles and Tattles, Baby Buggy, Lullabye Nursery
Nappy, two of these came with Bed and Crib Set
Yellow fuzzy diaper, came with Baby Snoozy
Pink fuzzy diaper, one of these came with Surprise Newborn Baby Bouncy
Yellow fuzzy diaper, came with Surprise Newborn Baby Cuddles