Bukkit

Display a player's balance on a scoreboard

The disco armour plugin!

ExpShop

1.2.2

Make's Emerald Armor/Tools

Buy monster eggs!

Pay online people money and items on a timer.

Automatically give new players a certain configurable item or stack of items the first time they log in.

An API for creating shops.

A customizable in game inventory shop, with a configurable custom economy system.

Change Mob Spawner very easy with Keys

Vault Benchmark

Custom Drops is a plugin that provides server admins to define configurable drops for certain blocks.

It will let your players kill monsters for money or kill players for money.

Ever wanted to manage your server's crafting recipes? Disable all smelting? Add custom recipes? Than CraftManager is for you.

Bukkit And Spigot Plugin

This is a nice simple, lightweight bounty plugin.

Get Heads From Mobs And Players

Punch the Block and It Generates IRON! Custom GUI, Custom Recipe

restore your inventory after death and many more options!