I was asked to envisage a currency system for a futuristic LARP game. I came up with these denominational coins, each value has a different shape and colour to signify it's different value. The number is engraved on the reverse so it adds depth to the token. There are fine details drawn with line art on the top to replicate the intaglio printing found on banknotes. Finally each curved section was made with the same curve, this means each coin can tessellate on it's own sheet to optimise cutting but they also tessellate with the other coins to form more interesting patterns.
I tried a couple of different styles with the plastic backing sheet but ultimately I think they work best with the whole thing peeled off before cutting the details.