Board Thread:New on Terraria Wiki/@comment-24574995-20140731104127

we need a machine that can turn normal metals into coins, the rarer the metal, the higher the chance of getting more coins

Example: 1 tin bar -> 1-5 silver coins with 40% chance of failure

If you were to use gold instead, the value chance would rise and the failure chance would lower

Example: 1 gold bar -> 10-30 silver coins with 36% chance of failure

ofcourse this machine has to be either very rare or would require lots of rescources to create 