I got a Bee in my Bonnet and decided I needed some pretty hankies. I had a bit of muslin hanging around, so I cut it into eight 9.5” squares. I did a rolled hem on some of them following the Purl Bee tutorial:
http://www.purlbee.com/rolled-hem-handkerchiefs/

And then I went to town on the edges with various colors of crochet cotton that I had hanging around. I made up most of the edges. I discovered that you don’t really need to hem a hankie if you’re going to crochet over the edge, so that saves a lot of time. The dark green one has blanket stitching over the hem, with a simple crocheted edge attached to the blanket stich, but I don’t really like the way it looks.

I also used this one (no photo yet):
http://lacycrochet.blogspot.com/2011/12/ladies-handkerchi...

And I think I’ll use one of these too:
http://lacycrochet.blogspot.com/2011/12/more-crochet-edgi...

Just found pdfclassicbooks.com and spent $2 on a book of 100 lace edgings, most crocheted but a few to knit:
Edgings: 100 Old and New Favorites