Angie from Le monde de Sucrette is having a giant granny crochet-a-long challenge. If you'd like to join in, you can check out her blog for more information by clicking on the 'giant granny crochet-a-long' button posted over on the right sidebar. Right now there are 55 lovely ladies that are crocheting a-long. There is also a flickr group, and a Ravelry group was just opened yesterday.
Here's my progress so far: