it's really done!
I found buttons--after a long and arduous search (no one seems to have toggle buttons)--and got them sewn on, finally. I wish I could model it and show it off, but it's too small for me, and it looks well, silly on me. It's too short, just barely can be buttoned, etc. I think it will fit my mom--the intended recipient--well, and I look forward to giving it to her. I think I'll give it to her for Mother's Day!
Full details are on my blog.