These are four Minecraft plugins I originaly made for the Garden MC french minecraft server. They now are public and open-source (MIT License). Feel free to use, edit and share them!
XPPlus
A Minecraft plugin that lets you bottle and unbottle your xp with commands, signs and unique in-game shortcuts. It is highly-customizable.
ColoredGG
A Minecraft plugin to color GGs in chat.
SimpleBackpacks
A Minecraft plugin that adds simple backpacks to vanilla Minecraft.
ChatPing
A Minecraft plugin to ping players in chat.