Edit Skin
Johannes Fritz

Advanced player skin customization

SkinsDB
bell07

Custom player skins manager with support for 1.0 and 1.8er skins and inventory skins selector

Emote
sofar

Provides player emotes and an api to make the player model sit, lie down and perform other actions.

3D Armor Mobile
LandarVargan

Adds a command to bring up a formspec that allows mobile users to put on armor

Spectator Mode
jp

A mod for Minetest allowing you to watch other players in their 3rd person view.