Naked edges

A woman at my moms church randomly stopped by a few weeks ago to give my mother this amazing quilt she made just for her:

"Your never given enough" she said. It's a stunning rag quilt. The colors are just amazing. I had to make her a special card. 

I was hoping to recreate the ragged edges however my patience was wearing thin so I gave up and left it as is. The card stock is made from Hero Arts layering paper. And the background flower was stamped with Jenni Bowlin ink.. don't quote me on that. Here's the rest of the stuff:

InLinkz.com

I've been wanting to make a rag quilt for awhile now. Do you have any pointers/tips you could share?

Katie