I forgot what these were called but they are actually on eBay. I think there are 4-5 of them, and they all have that old school, OG Mario vibe before marketing nailed down the specifics of what he looked like.
These discs embody the look of Mario I want to collect for hanging in my game room, however, I was a little off put but the fact that they were circular and, to be honest, I couldn't figure out what I'd do with them.
Regardless, I love these. IIRC, they are often listed for $10 and I think I saw a complete set for maybe $45-50. Also, the sets that are are more common, were in English but were not from America. Regardless, they seemed common from where they originated. I really think they are cool, but I have no clue what I'd do with one or a set.
Regarding what they were, maybe Arcades in Japan had traditional, circular shaped frames, or something, that were used to advertise the games in an arcade. I don't know, but if this form was commonly used, I assume it had to be fore something like this. Maybe this was the early Japanese version of a Vidpro card.
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