The toy with a distinctive smell that is officially trademarked is Play-Doh. The scent of Play-Doh has been registered as a scent trademark in the United States for toy modeling compounds.
Trademarked toy scent
Hasbro obtained a federal trademark registration in 2018 for the characteristic Play-Doh smell, recognizing it as a distinctive indicator of the product’s source. The registration describes the scent as a sweet, slightly musky, vanilla-like fragrance with hints of cherry combined with the smell of a salted, wheat-based dough.