Choose from 22 Windy City Novelties coupons that include promo codes and free shipping deals for September 2016. Our top coupon is a 16% Off coupon code. You can use your coupon code to save on party supplies and novelties at Windy City Novelties. Shop nothing but fun! From glow products to costumes and party items, you'll find tons of fun stuff here. No matter what kind of party you're throwing, Windy City Novelties has you covered.