Roadholder made a theme called Union Jack, and he did something that I found interesting, he added a random header image feature, but instead of just being random images he used different areas of the Union Jack. I really think it is cool, and could be done with other random image series’.
This is the first template, which is a simple two column template for Blogs. A cool feature was added: the random header. You can make your own images that will randomly be showed in the header. To add more images, take a look into the code, is quite simple, or drop me a line.