New with tags. HYDE & EEK Monarch Butterfly Costume Dress up your toddler in adorable style for Halloween with the Toddler Monarch Butterfly Halloween Costume Dress with Headpiece from Hyde & EEK! Boutique. This monarch butterfly Halloween costume dress is designed in yellow, orange, and black hues in a full length for a cute look. The included black headpiece adds a perfect finish, and it's made with soft and lightweight fabric for reliable comfort. Size 2T-3T #250