TEconomy is a plugin based on Vault allowing players to have economy on their server within seconds without having to do any complicated setup.
While having extremely easy to understand configuration, it also allows to edit most aspects of the plugin, including the prefix.

For simplicity, this plugin only offers to use nickname-based file database which is set up automatically upon installing the plugin.

Dependencies:

Vault

Permissions & commands:

/money help - Shows all commands which the player has permission to
/money check (teco.check) - Display available balance
/money check <player> (teco.check.others) - Displays available balance of another player
/money pay <player> <amount> (teco.pay) - Sends balance to another player
/money set <player> <amount> (teco.set) - Sets target's balance to set amount
/money take <player> <amount> (teco.take) - Removes balance from target
/money give <player> <amount> (teco.give) - Gives balance to target
/money reset <player/all> (teco.reset) - Resets the target's balance to starter amount
/money top (teco.top) - Shows the top 10 wealthiest players in the database

Limitations (may be added in the future):

No ability to change the messages (no translation file)
No ability to change storage system (no option for MySQL etc.)
No ability to manipulate player's balance silently
No ability to reload config while the plugin is running

This is my first published plugin. Please be respectful if you find any bugs/errors in the plugin and report them