The Teenage Mutant Ninja Turtles Scratch & Smell TMNT Retro Mello Smello is a vintage collectible from 1990 featuring the popular Teenage Mutant Ninja Turtles franchise. This unique item allows fans to scratch and smell different scents while enjoying nostalgic memories of the iconic animated series. Perfect for collectors and fans of the TMNT, this retro merchandise is sure to bring back fond memories and provide hours of entertainment.