Halloween // Know of a place that makes custom dog Halloween costumes?

Hi! I'm looking to have a custom Halloween costume made for my dog. He has won third place in a costume contest for the last three years, so we're looking to elevate his game!

The plan is for the dog to be Stewie from Family Guy, while my boyfriend will be Brian and I will be Meg. I found some red dog overalls on Amazon, but they will be way too small, as the dog is a pitbull mix of about 55 pounds and a bit pudgy around the middle. (He is also missing his back leg, but usually a regular costume works fine for him.)

Any suggestions are greatly appreciated!