These diaper-clad ponies are the same as the Small Ponies and of course, share a body with the Pink Babies.
Diaper ponies are not new to My Little Pony. As far back as G1, Fancy Pants Baby Ponies had their symbols replaced with a painted on diaper.
G3 had So Soft Baby Ponies: Half-plush, half-plastic constructs that squealed and suckled. They were often adorned with a diaper.
So Soft Babies made a return in G4. They, too, communicated and desired care.
Today's featured ponies are not so complicated. They just look around and seem content to have brushable hair.
Though the purple pony lacks undergarments, it is still included in this bunch with its brethren. They all have the same raised hoof pose, small heads, and painted eyes.
All the ponies with diapers have them applied haphazardly to their backsides, with no indication of how such a garment would stay on their bodies.
Their diapers are all alike-- decorated with blue and green dots and stars.
The baby with a comb attached was found in a store and given to me by a friend. It was sold loose, with a comb crudely ziptied around its leg as its only comfort.