Bukkit

CalculateMe

Adds a whole new level of difficulty to your Minecraft world

Wack a invincible villager while recieveing messages on how much damage you do

Grab

A SentryGun which kill nerby entities like Mobs, Players

Get Wool Dye

A plugin that requires players to unlock ores before they can mine them.

Auto ignite TNT on place.

Add parties to minecraft by using this plugin! This adds 4 commands with many different options.

Mechanics adds on features to your server which would happen in real life.

Allowes minecarts to be retreived back into dispensers

Add elytra bombing to Spigot/Bukkit server

Disables redstone changes at night to reduce lag.

Make console more like in-game chat

Selectively disable mobs

Regain health after killing mobs.

Infinite knowlege on paper

A plugin that fixes broken locks on servers updated from 1.7 to 1.8

Lights Plugin

The plugin implements simple mechanics - The player puts dynamite, and the dynamite, in turn, is set on fire immediately (without the participation of the player).