I made myself a dinosaur/fossil bag! This one's smaller than a messenger bag, about 12 x 10 inches, and features triangular sides, an inside pocket, two outside pockets including a cell phone pocket with a flap to keep the phone in, a zipper (my first zipper!) and a hand-stitched strap. Well, the whole thing is hand-stitched, actually.
Link
Mazz
That's awesome