The harlequin is one of my favorite patterns, so there was no question that I would grunge it up. Harlequin Grunge Papers in two different diamond sizes are a free eri*doodle design download. So right mouse click and save image as on each. Yes, there are large enough for 12X12. Yay!
You are welcome to add my blog link to share the freebies with others, but please do not post the image or create links directly to image. Of course you cannot resell the images directly, but you may use them in your own art that is to be sold.