"Guess how many! It's a surprise! How many girls! How many boys!"
Puppy Surprise etc. were produced by Hasbro in 1991-1993. Each set comprised of a plush mother animal measuring about 12 inches long and a number of soft babies which were about 4 inches long. They had plastic faces and came in a variety of colours. The number of babies included varied and each one was different. The mothers came with a name tag around their necks, which also came in a variety of colours. Later on, the babies were sold on their own in many guises.
"Mommy's having baby ponies!"
These are a few images of the different Surprise Ponies.
Playful Hair Ponies
"Growing hair surprise for your baby pony! These snuggly soft ponies have extra long fluffy hair to cuddle and play with! Comb the silky hair and make it grow - pull on the tail to make it short again!"
Kitties and puppies were also sold like this, and were three varieties in each set. The combs were the same mould as the MLP flower picks.