Now through 11:59 PM CST, 3/17/2025: Enjoy 15% Off Easter Costumes! Discount applied at checkout. Valid on HalloweenCostumes.com only. Valid on Easter Costumes only. Not valid with other offers or promotions. Only one valid promotion per order. Other restrictions may apply. Discounts or other special offers cannot be applied to past orders or future orders placed after the expiration date. Not valid on preorders.