Pixel Patterns

Here's something fun in Photoshop: creating your own patterns. I found this tutorial today so I made a couple patterns. I'm not sure exactly how useful they might be, but it was fun to create something small and see the patterns it makes when multiplied a few times. Here's the progression of one my attempts.

The quarter pattern I first created with the pencil tool:



The quarter copied and rotated into the full block pattern:



Used as a pattern in Photoshop:


(click for a larger image)