One of my favorite things to make, even as a kid with just cardboard and glue, are costumes. I love Halloween, but I think kids in costumes are adorable year-round. Our costumes see nearly daily use by my kids and their friends. For today, Kari asked me to share one of my tricks in creating a unique and fun costume. If for any reason you need a suit with a smaller chest and shoulders please contact us to learn about our Basic Lean muscle suit. Muscle Suit Measurement Chart These measurements were taken by measuring a mannequin, and then putting each of the above suits on that same mannequin and taking measurements with the Flex suit on . 9 rows · Body Suits. Title: Character: Making a Custom Fit Liquid Latex Body Suit: How to Make a Muscle Costume: How to: cheap upper body muscles.