The M-Class owner’s VHS tape, from back in Ye ‘Olde days.
I also have an M-Class themed convertible teddy bear. Basically a plush ML toy, which can be converted into a teddy bear and back.
Also an ML kid’s backpack. An ML plush, hollowed out and backpack-y
Finally, OEM all-weather floormats
Perks of being the first owner, lol