Very unexciting to most, but as my first ever sewing project beyond basic clothing repair for my family, I built a rear bag tonight and am quite proud of it. Filled it up with a bunch of blue aquarium gravel I had in the house. It isn't much, but it came out far better than I ever expected it to. 4" x 6". Material is called duck cotton (a heavy canvas cotton). Wanted Cordura, but my local fabric supply had no idea what that was.