https://www.cnet.com/news/get-your-nintendo-labo-fix-at-amazons-treasure-truck/

The make-it-yourself set of cardboard accessories for the Nintendo Switch console launches Friday, and in our review, we described it as "if a school science project, Lego and Ikea had a magic video game child." The kits may be hard to find in stores, but the Amazon Treasure Truck is selling the starter Variety Kit today in cities across the US. 

The Treasure Truck is an occasional promotion where Amazon picks a single product, usually something in short supply, and sells it at physical locations, literally from a truck. Previous examples include the highly sought-after SNES Classic, also from Nintendo.