These are some holiday background tiles - simple but fun. Colorize them, add a layer of white and play with transparency or leave them as is! Just right click on the image of your choice and "Save image as..."
 

These are some muted victorian tiles.  I like these as is or with the opacity set to 95% but you can play around with them any way you like.  Just right click on the image of your choice and "Save image as..."