I think it is basically ridiculous to dress up pets in clothes like they are a doll or a baby. I can't imagine that any of them especially likes it. However, I remember when I was a kid growing up, we had a big, fuzzy black cat, named Fuddy and my sister and I would dress him up, put him in the baby carriage and push him around. He never seemed to mind and we were just playing anyway.
A few years ago I had a bottle baby goat that lived in the house and I couldn't leave her by herself. I had to go somewhere and it was freezing cold outside so I put a little girls top on her to help keep her warm because she always shivered when she was outside. We stopped at a friend's house on the way and the friend seen the goat with her little shirt on and she gave me a little dog coat that she used on her dog once. The coat fit the goat perfectly, so she wore that if she had to go outside. The coat just fit over her back loosely and there weren't any leg holes or anything in it. It was more of a wrap or shawl type thing, so she wasn't restricted in her movements.