Remember these into the mid Shops gave them with a whole variety of goods.you stuck them into boks and exchanged them for a variety of household goods at 'Green Shield Stamp Shops'. There were also Pink Stamps.
Yes and putting glue on our hands, just for the thrill of peeling it off. I also put Ralgex and Algipan on my arms to feel the burn. Guess you had to find some way of enjoying yourself , if you didn't have that many toys lol !