I made these sweet little crochet backpacks in one night. It's really very simple and is mostly single stitches so even the beginners can pick up on it quickly. I'm still developing the Instructable, but wanted to share the pic.
The instructions will also be posted here: http://handmadebyannabelle.blogspot.com/2013/02/quick-and-easy-crochet-backpack.html
If you'd prefer I make one for you, here's my ETSY shop: http://www.etsy.com/shop/HandmadeByAnnabelle
It's made the rounds on Pinterest too: http://pinterest.com/pin/49047083414128904/