Tetrahedral carton of milk Even though very normally shaped like a cuboid, It's not at all unheard of to uncover cartons lacking proper angles and straight edges, as in squrounds employed for ice product. Xbox As these have been incredibly valuable, typically commanded by the quite richest artwork-prospective buyers, like https://dairycartonsustainability.water.blog/2025/06/09/innovating-sustainability-with-eco-friendly-packaging-for-water-and-beyond/