This one in Portuguese - my translation left something to be desired, but the pictures are fairly self explanatory. Direct link to pictorial ~ crochet petal edging. Beautiful, but wouldn't want to have to cover a vast area with this stitch.
How to Make a Handmade Crochet Cat Bed. Very Cheap and Easy to Make!--This would be perfect for our cat, Ninja. he has a bed from when he was a kitten and he still loves it, but it is getting a bit small for him.