"...on a happier note"

Tales of yester-year. Box tops, and da neat stuff ya sent away for. It was just a marketing scam, but it was fun. Ya sent produce box tops for all sorts of useless scraps of cardboard, and bright colored plastic gewgaws. Like below which looks suspiciously like a paper Mig-3. Then there were the things that came with the cereal. I can't imagine how it would work today. Would a kid get a free bong in a box of Ganja flakes?