So I've seen plenty of economy mods for servers between players - but I haven't seen much in the way of creating a new economy for players dealing with villagers before.
I hate trading with villagers when it comes to emeralds, I realize it's the only real use for the emerald ore in vanilla Minecraft but it's a pain, and villagers usually have very little to trade that's actually WORTH all the effort to get the emeralds in the first place. Which isn't realistic.
Mankind has in multiple civilizations been using coins to trade for over 2000 years. Why is a game that can be anything from stone age to the future (with the vanilla seeming to call on roughly anywhere between 11th to 16th century in some of its inspiration).
I'd like the idea of keeping it vaguely medieval in theme by having coins for players to trade with villagers basically buying goods instead of paper or credit cards which most of the other mods I've seen add for player-to-player - I'd find ATMs pretty emersion breaking; - and having the coins scaled (copper, silver, gold etc) so that the trade is fair. And maybe having support so that there can be trade between players on the server using the coins to sort of tie it all in together.
I .... suck at Java so I can't make this mod which is why I'm putting it in the ideas and requests area - but I can make models if I'm allowed to use Mr. Crayfish's model maker for it if that would make things easier and take some of the strain off anyone willing to have a go at this.