Carrie you have really excelled this time! Wow, is all I can say.
Yesterday I was cruising around some blogs and found this - I have never heard of Decatur Knots before, but here's the link - it may be of use to you in your quest to get these beauties tied/quilted. I haven't tried it, but it does look pretty good...
http://www.flickr.com/photos/3133956...th/3471527020/
Just click on each photo in order and the steps are explained quite clearly.