Some time ago, while riding the bus, a man got on wearing a light crochet hat made with the same 3dc clusters as in a granny square. Remembering that, I decided to experiment with working granny rounds to make a hat, and succeeded. Here's one version.
Once again, I used Patons Lace, Sachet. It's a great yarn for this sort of thing - though it's not one you want to be making any mystakes in, because catches like crazy if you have to rip it!
Visit my flickr page for more photos.