Costco: Halloween Costumes 2016

8/14/16. Costco offers a great selection of some of the most popular Halloween costumes for children. Shop in stores or at costco.com. While supplies last. Disguise Toddler Licensed Costumes:  $15.99  (Item #949507) Rubies DC Superhero Tutu Costumers:  $18.99  (Item #9497899)  Sizes S, M, L Teetot Princess Factory Costumes:  $19.99  (Item #949488)  Sizes 3-4 and 5-6 Disguise Halloween Costumes:  $17.99  (Item #949504)  Sizes 4-6 and 7-8 Rubies Toddler Licensed…