If you are a sewer and have never experienced the joys of sewing with elastic thread, you really need to try it. It's addicting!! Over the summer, I used elastic thread a lot. It's great for making sundresses and skirts. I haven't used it so much since the weather has turned cooler. But the other day, the idea popped into my head to try it out on a sweater - resulting in The Grandpa Cardigan Refashion:
This sweater was a $2 thrift store find.
Using elastic thread, I simply sewed several rows alongside the button plackets, on the front only. The elastic thread will shir, and ruffle your fabric. If you've never used elastic thread, there's a good basic tutorial here. And if you sew with a Brother sewing machine (which I do) there's a tutorial here for making adjustments to your machine to make this work. Here's the result: