I'm not much of a seamstress, but I figured I could sew the output from learning to weave on a triangle loom. Besides, I planned to felt the bag, so expected any "quirks" to be hidden. And that is what happened.
I used what I guess is called a running stitch to join two pairs of triangles to form the front and back of the bag. I wanted something relatively invisible so the fabric would not look pieced. And that is what I got (after felting).
To join the back and front, I used blanket stitch on three sides. For the flap, I'm guessing the stitch I used is called overcast. Across the purse opening, single crochet provides reinforcement. Fringe finishes off the flap; in retrospect, I should have left the fringe longer. Five-stitch i-cord became the strap.
I haven't felted much, but I remembered enough to put the purse in a mesh bag. Then I tossed it in with the regular laundry, intending to check on it after five minutes of agitation. I forgot all about it, so it went through the whole cold water wash cycle.
I half expected the result to be doll-sized. While the loom is ostensibly 8" on a side (okay, on two sides - the "top" is longer), the material contracts to about 7" when it comes off the loom. After my lackadaisical felting, the purse is about 6" on a side. Perfect for a six-year-old, me thinks.