Bukkit

Allows Clay to harden into Hardened Clay!

A simple timestamp for when you go online or offline. Shows online status as well.

SimpleTrampolines - Create either manually or using /st create

A stick for hide and seek

UltimateBackpack

Allows un-craftable items to be crafted!

Become a hunter and get rewards for killing other players!

Place-n-Explode TNT, because, why not.

CustomPluginList

This mod blocks the "You moved too quickly Hacking :(?" Kick.

Minecraft with lives.

xDrop

shorten urls in-game via Tinyurl

CCrafting features custom crafting recipes

Make smelting easier!

Combat Evolved

RealmsAnvil is a plugin which allows players to right click their damaged anvil with an item to repair it.

Make tridents craftable

Potionboard

Randomly selects a player on a killstreak, and puts a bounty out for them.