Google paper-pieced Double wedding ring quilt pattern and you will see the site for McCalls Quilting. Templates and instructions are there in PDF for printing or to save.
critterpat.com and they had a free video on there explaining how to do it. WOW now I can do it and boy do I have some new ideas. Great site. Be sure and read the copyright info.
This is a great method for sewing curves together.
1. crib/toddler sheet pattern