Here it is--I've finished my Prairie Schooler "Rain, Rain" design. Thanks for the suggestions and help! I ended up using play old polyfill to stuff it. I may tweak how I finish something like this in the future, but it went smoothly enough. I wonder if I should use interfacing to make it a little stiffer? And I use two plies of floss, but would one work just as well and be easier? I have a feeling I'll be making more of these!
The corners are always the hardest part of finishing something like this. I may change the color of the pins that I chose, and I may use a piece of ribbon, but right now this is how it looks.
I might also use a little interfacing next time, too, though I'm not sure. It has a sort of 'lumpy' quality to it, but I still like it! Now I get to decide whether to pull out another small UFO or start a new design. I am still working on PS "February" but it is also nice to have a small project on the go as well.