I came across a free paper pieced mariner compass star at this site:
http://quiltinggallery.com/tag/paper-piecing/
And finished, it measures 26.5 inches. I'm going to try it. You have to scroll down a bit. It's the last item on the page. There's a video there showing you how to make it from Brenda Henning. My speakers are shot, so I couldn't hear any of it, but I just watched. It seemed easy enough until she got to the "frame" part around it. That's going to be the sticking part for me I'm sure.
But, I think I'll do it like I did my carpenter wheel, black background with all bright batik colors.
Check it out. You can download the pdf files for the pattern if you like.