You can't, hopefully Making AB will consider the option soon.
You have to install mods in order to customize character appearances.
You can customize them online.
You can customize your character in Dragon Ball Z: Ultimate Tenkaichi
Your Minecraft skin is not one you buy. You customize it on www.minecraft.net. Log in, Click on Profile, and change it to anything you want.
You really can't customize a charecter, but you can name your charecter by hitting the little icon in the corner of you character in the charecter selection screen
There's always pottermore, but it's not very exciting and you don't really get to customize your own character.
no
Singleplayer: you cant Multiplayer: you customize your settings and T is the default button
koda
a script that gives your character an eyeball, a special tool that allows you to customize your character
You can't