Back in the early (early beta) days, when I still played in my own world, my first world (I ever created in minecraft), I used to do a lot terrible ugly building in creative, then with invedit some bigger stuff, then in creative the pixelart, it was a simpeler time... I decided, after 3 years to have a look back at what I built back then.

I was actually surprised by the quality of some stuff!

Here's a list of the pixelart (in order):
-Angry Birds
-Bowser
-Flying turtle (Mario)
-Flying Mario
-BA (A-Team)
-Fire flower thing (Mario)
-Pikachu
-Sonic
-1-UP
-Star (Mario)
-Pong
-Tetris
-Space invaders
-Stewie
-Pedobear
-Wario/Purple Mario because of the texturepack
-Bullet
-Luigi
-Angry mushroom :D
-Mask guy (Mario)
-Link
-Packman
-Wizard (Final Fantasy?)
-Megaman
-Elvis
-Banana
-Banana 2
-Nyan Cat
-Albert Einstein
-Che Guevara 
-Admiral Ackbar
-Spongebob
-Peter Griffin

Enjoy!