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Yes..the law is called First Sale Doctrine.

?Coupon=CC2015"The first-sale doctrine creates a basic exception to the copyright holder's distribution right. Once the work is lawfully sold or even transferred gratuitously, the copyright owner's interest in the material object in which the copyrighted work is embodied is exhausted. The owner of the material object can then dispose of it as he sees fit. Thus, one who buys a copy of a book is entitled to resell it, rent it, give it away, or destroy it. However, the owner of the copy of the book will not be able to make new copies of the book because the first-sale doctrine does not limit copyright owner's reproduction right. The rationale of the doctrine is to prevent the copyright owner from restraining the free alienability of goods. Without the doctrine, a possessor of a copy of a copyrighted work would have to negotiate with the copyright owner every time he wished to dispose of his copy. After the initial transfer of ownership of a legal copy of a copyrighted work, the first-sale doctrine exhausts copyright holder's right to control how ownership of that copy can be disposed of. For this reason, this doctrine is also referred to as "exhaustion rule."

So even if you purchased the Barbie, once you do so you can do with it as you wish. I buy Disney toys or candles and sell the cake with them on it. As long as it is a LICENCED product and not an Etsy sold reproduction you are legal. Otherwise you would not even be able to sell that same Barbie at a yard sale.