Spot stretching, also known as bunion stretching. I like to call it spot stretching because it works for problems other than bunions. You can find the tool here
. Scroll down to "Bunion Stretcher." Probably not a bad price if you think you'll use it a lot, but I don't really know for sure. When I worked at the full-service shoe store I used this tool for ALL KINDS of issues. It was my favorite fix!