A Mario Star Coin I made a few months ago by remixing two models from Thingiverse in Tinkercad. I used (95% certainty) Mario Coin by Ansarum and Super Mario Star by condemime to create this. I printed the coin in PLA without supports. The model is quite large, but I use it to print small (2 cm) coins. I guess supports might become necessary at larger sizes (haven't tested this). The photo is of an even smaller test coin.
The author hasn't provided the model origin yet.