painted floor mat

I got the idea browsing Martha's site, I think she calls them canvas mats, but she lost me at gesso, since I'm not paying for canvas and gesso to make a floor mat. But the idea sprang back in my head as I was de cluttering- I had some old scraps of fabric (sewn together) and some left over wall paint in the basement- and I needed a mat for my front hall. This one ended up being 7 feet long and cost zero dollars.