I started making a messenger bag sometime in June out of a rain poncho. It was very large and I loved it. When I took it on a flight, though, the seems split, sad day (though luckily it wasn't on the plane). I had my mom take it home, and I would fix it when I got home.
Instead, I decided to make a whole new one though! Kind of frightening that we had two rain ponchos lying around, but lucky. I used that as an outside and to reinforce it, I used an old stripe-y pillow-case. I love how it looks.
ignore my foot at the right corner xD
I like the added color to the strap, here (again, ignore me at the bottom of the picture)
This is the inside
and the little snaps to hold the bag closed