Diy Cute Couple Costumes . If you are, then these diy couples halloween costumes are for you. This one's a little embarrassing, but it's a fun costume idea, so i'll share it! diy shower couple halloween costume from www.bigdiyideas.com Gomez and morticia addam’s halloween costume. You will need 10 to 12 for each stalk. See more ideas about diy couples costumes, couples costumes,.