From Three Potato Four, scented hang tags in Snoopy (coconut) and Charlie Brown ("morning mist"). $9 each at Beautyhabit, where you'll also find other options (Snoopy on a motorcyle in the "Summer Nights" scent, for instance, or a Richard Scarry bunny in Sandalwood).
Not one of my lemmings but maybe it will make your list: Pierre Guillaume's new car fragrance. "If, like us, you’re particularly sensitive to the delicious but ephemeral smell of a new car, Road&eau is the signature car scent to adopt. A blend of the scent of dashboard materials and new carpets, the smell of cleanliness and a je-ne-sais-quoi of softness and warmth, Road&eau is a unisex, tender and delicate fragrance that will elegantly dress the interior of your car to make it the cocoon of your road trips, for your pleasure and that of your passengers." €35 for 50 ml at Pierre Guillaume.
From Homesick + KFC, the KFC Bucket of Chicken candle ("A blend of herbs and spices excite the senses in a familiar way. Perfectly fried chicken fuses with garlic for an addictive scent explosion"), on markdown for Black Friday at $24.46 for 390g and also available in Buttery Biscuit. Unfortunately currently out of stock but expected to be back in early December, the Bucket of Chicken car freshener, which will probably be back to $12 when it is restocked. At Homesick, where that Dunkin car freshener is now $6.29. Other collaborations in stock: Seinfeld, Harry Potter, Friends, Barbie and etc.
A lemming for International Coffee Day: the DUNKIN' Perfect Combo Car Freshener. "Notes of strawberry and coffee grounds bring visions of rainbow-sprinkled donuts and iced coffee with cream. A classic combo that keeps America running." $8.99 at Homesick, where you'll also find the DUNKIN' Original Blend Candle ("America's favorite all-day, everyday coffee since 1950. The combination of Original Blend and cream deliver a sweet scent to be enjoyed by all") for $34.99.
From Serge Lutens, a car diffuser that uses the same cartridges as the brand's electric (home) diffuser. "Distinctive and elegant, the car scent diffuser has been designed to receive Serge Lutens at Home scented diffuser cartridge to provide an almost immediate diffusion of the chosen fragrance. Interchangeable at any time, they conjure up a memorable olfactory journey over and over again." $68 at Serge Lutens; the cartridges are $56 each.