This girls' One-Piece Swimsuit, originally $18.76, drops to $10.32 when you enter the promo code L1903048 during checkout at WantDo Fashion Store via Amazon. Shipping is free when you use a Prime account or free Prime trial. Shipping is also free when you spend $25 or more. Otherwise, it adds $5.99. We couldn't find this deal anywhere else, but similar ones start at $18. Note that this price is for the pictured option, but you can get a similar discount on the other styles by using the same code. Sales tax is charged in most states.