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Currencies

Every currency a character can hold in the game files of build 1.60.1.70450, apart from the game's own hidden counters.

CurrencyKindMost you can holdWhat it is for
Darkmoon Prize TicketMiscellaneousNoneAwarded for winning games or doing favors at the Darkmoon Faire.
Honor PointsPlayer vs. Player25,000Honor is gained by killing members of the opposite faction in PvP combat. You can use honor points to purchase special items.
Merchant's FavorProfessions & TradeskillsNoneWorth a considerable amount of gold and thus used as an interim currency among high-traffic merchant organizations. Members of the Durotar Supply and Logistics or Azeroth Commerce Authority would be willing to trade for this.
Rank PointsPlayer vs. PlayerNoneRank points are gained by completing tasks given in Gadgetzan or participating in battlegrounds. Rank points increase your PvP Rank which grants you access to purchase special items.
Tarnished Undermine RealDungeon and Raid165This currency is slowly being phased out of circulation, but it still enjoys a very favorable exchange rate at goblin towns throughout the Eastern Kingdoms and Kalimdor.

From the WoW Forever game files, build 1.60.1.70450: the CurrencyTypes table, without the rows in the game's Hidden and Unused categories (counters such as the Legacy renown and talent-reset trackers).