The teen star is said to be so upset by the Finally Mylie love doll that she is planning to sue the company responsible. But the blow-up effigy — which boasts "3 achey love holes" — has flown off the shelves.
Kevin Johnson of Pipedream Products, the company behind the doll, said: "We are completely sold out already — it's been on the market for less than 48 hours."
The wayward Disney star, 18, is not the first celebrity to be recreated as a sex toy.
Lady Gaga, Britney Spears, Kim Kardashian, Pamela Anderson and Beyonce also have sex blow-up replicas made in their honour. Some have been removed from sale "for legal reasons".
But despite rumours of Miley's pending lawsuit, the company is yet to remove the doll from the market.
Johnson said: "We haven't received a cease and desist letter from her attorneys yet, but I have seen those rumours circling online. That probably means it will happen soon enough."
The Finally Miley Love Doll has been selling on Amazon for $27.49 (£17) in the US.