I'll start by showing a quick little wallet I made using a pattern from Lazy Girl designs. I had a fat quarter of the neon orange/purple fabric but didn't know what to do with it, so I used it to try out the pattern.
Oh, that's funny you should mention the buttonhole because one of the reasons I did this little project was to get to know my new sewing machine at the time. And guess what? It's a Pfaff! I love the automatic walking foot.
I had the pattern for a long while myself, until I was looking for something simple and fast to make so I could try out my new sewing machine. It works up fast, and I could see making a bunch of them assembly line fashion. You could have one for every outfit! ;-)