Have a new template for y'all!
{{WoW Coin|gold|silver|copper}}
Displays the amounts with coin icons. All 3 amounts are optional, but they need to be in that order.
{{WoW Coin|1|2|3}} would display 1[gold] 2[silver] 3[copper], where [gold], etc. is a little icon of the coin.
{{wow coin|||3}} is 3[copper]
{{WOW COIN||12}} is 12[silver]