Tenn. Code Ann. § 47-18-901

Unless otherwise agreed, where unsolicited goods, wares, or merchandise of a value of less than fifty dollars ($50.00) is delivered by United States mail or United Parcel Service to a person who has not actually ordered or requested it, either orally or in writing, the person has a right to refuse to accept delivery of it, is under no duty to return it to the sender, is under no duty to preserve and safe-keep it, and may at the person's option deem it to be, for all purposes, an outright and unconditional gift and may use or dispose of it in any lawful manner without any obligation on the person's part to the sender.