Minecraft wiki entry for Pixel_art, associated text: 1 Definition
2 Designs in Minecraft
2.1 Blocks
2.1.1 Sea lantern
2.1.2 Stone
2.1.3 Obsidian
2.1.4 Cake
2.1.5 Pumpkin
2.1.6 Glowstone
2.2 Mobs
2.2.1 Zombie
2.2.2 Creeper
2.2.3 Witch
2.2.4 Iron golem
3 Designs in real life
3.1 Overview
3.2 Shapes
3.3 Examples
3.3.1 Piano
3.3.2 Creeper Face
4 Map Pixel Art
5 Videos