Our daughter had the cutest baby chicken costume ever! I took an onesie and put it inside a one piece turtle neck. I sewed the two garments to each other at the arm holes, leg holes and neck hole. I put lots of batting between the two garments and snapped the crotches closed.
I then took white feather boas and stitched them all over the body. I took a little white cap and sewed a little red stuffed strip of fabric. I used yellow pants. I filled the fingers of two yellow latex gloves and placed them over the shoes. Cute, cute!