I love quatrefoil patterns and use them a lot on my designs. Clients often request the pattern for blog backgrounds. I thought I would make a mixture of various colors of seamless patterns and give it away as a blog freebie. You can now easily add these to your own blogs and if you would like to know how to make these into larger papers and such I will show you an easy tutorial on how you can achieve that in Photoshop.
1. Open whichever pattern you would like to use (you can easily do this to all of them).
2. Go to edit-define-pattern and then name your new pattern.
3. To use your new pattern open a blank layer with whatever size you want to work with for your project.
4. Go to layer-new fill layer and then select your new pattern and fill. [link]