Sweet, slightly musky. Vanilla-like. Slight overtones of cherry. Natural smell of a salted, wheat-based dough. Behold, Play-Doh. Behold, childhood. Behold, the newest trademarked scent. Hasbro became the latest company inducted into the small club of brands with a scent registered by the United States Patent and Trademark Office. As of Friday, the Play-Doh scent trademark is one of 13 active registrations, according to a spokesman from the patent and trademark office, joining the ranks of a strawberry-scented toothbrush and ukuleles that come with a whiff of pina colada. Invented in 1956, Play-Doh has wedged its way into children’s fingernails and living room carpets every since.