Shop Halloween costumes for babies and kids at Carter's. Save up to 50%. Family Halloween loungewear is available too. The pictured Little Dragon Costume in sizes 12m-24m drops from $44 to $22. The Little Ladybug Costume, which is also pictured, drops from $44 to $22. That's the lowest price we could find. Plus both styles are available in toddler sizes for a few dollars more. Spend $35 for free shipping. Otherwise, it adds $6. Sales tax is charged in most states.