Discover the best prices on Barbie costumes Costumes & Accessories when you shop at BizRate for Halloween. Browse Barbie costumes in Costumes & Accessories to find the lowest prices from Disguise, Rubies and Mattel. Narrow your search by price range, product specification, store, or style -- even calculate your tax and shipping charges before buying Toys & Games products. Save on Halloween Costumes & Accessories at BizRate: Buy Adult '60s Barbie Costume and Adults Deluxe Solo In The Spotlight Barbie Costume.