If you ensemble together the outer rings of a $1, $2 and $5 pesos of a Mexican coin and

If you ensemble together the outer rings of a $1, $2 and $5 pesos of a Mexican coin and the center of a $10 pesos coin you get the maya calendar
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(TITLE FROM REDDIT r/Damnthatsinteresting)

@hyperion if you have this, I may consider

Ok so first, you get the Aztec calendar not the mayan calendar, the Aztecs were dominant civilization and the biggest empire in America before the conquest.
Second, although the design does actually look like the Aztec calendar, when you stack the coins they don't actually look like it, they are almost the same size so it doesn't really work.