I like this guy's Minecraft tutorials.  Here's one on building functional aqueducts.


Minecraft working irrigation and auto crop cutting. This one is really elaborate but neat.

Paper mosaic ideas http://www.helpmedias.com/minecraft.php                                                                                                                                                     More

Minecraft designs for HAMA beads

Could be helpful when building pixel creations in game to help balance things out evenly rather than counting off the screen.