This Australian troper remembers they used to make imitation pogs called Tazos way back during primary school, which potato chip brands like "Thins" would put them in hidden packs. They had pictures of old Warner Bros. characters on them, and were sought after. Many packets of chips were eaten by this troper (and took the undesired calories in tow)
just to get the Tazos. At least they didn't cook 'em
with Olestra...