The Hamburger Cushion, on Etsy
Who knows and who cares—it's a whole lot more functional and practical. For sale on Etsy, where it's described as "Hamburger Scatter Cushions," it comprises three large cushions (bun top and bottom and patty), two small tomato cushions, and lettuce-leaf and cheese plushies.
Its country of origin is Australia. Take that into account if you want to order one, as it's available stuffed and unstuffed (easier for shipping; stuff it yourself on arrival). Hamburger Scatter Cushions, Etsy, $300AUD/$245USD or $290AUD/$235USD