I made a baby quilt for my GodDaughter and she asked for a matching sling. Of course the fabric I used was not on sale when I went back and you have to have two 2 1/2 yard single pieces for the sling and lining, so 5 yards at regular prices. Yikes!!! Came out really cute though.
got the rings and a link to the pattern here:
http://www.slingrings.com/index.php