Documentation
To add this userbox to your user page, use this code: {{User:Oxguy3/myboxes/minecraftusername|Your Minecraft username|image=[[File:Image.extension|45px]]}}
If your Minecraft username is the same as your Minepedia username, you can just use this code: {{User:Oxguy3/myboxes/minecraftusername}}
Inspired by Orion-Pyro's Minecraft Sig-Icons on Minecraft Forums.