Halloween // Creative Ideas for Pregnant Couples Costumes Needed!

My hubby, 30, and I, 29, pregnant female, are looking to do a couples costume for fun to wear to a Christmas costume party. Looking to use some of the things in my closet. Here's what I have to use:

A green housecoat, a white quilt to wrap around my belly like an apron, white gloves, and Santa hat (optional).

My husband says he is open to anything.