Would this one qualify?

It was made in 1981 when I used to specialize in collecting Bust Half Dollars and I belonged to the "Bust Half Nut Club".

When I attended large National and Regional coins shows around the country, instead of giving coin dealers a business card, I would give them my personal chip. A business card would more than likely be tossed, but a chip was usually saved ... or at least tossed in a drawer or box. Year after year when returning to some of these large coin shows I was always surprised how many dealers remembered me from the chip I had given to them.

The year was 1981. I'll show the other side of this chip in a follow up post. (Have not yet mastered the technique of showing two images in the same post.)