What you need:Charm Squares or scrap fabric
Rotary Cutter or Scissors
Cut strips to 2.5 inches wide.
Sew the strips together end to end
Fold sewn strip in half and iron flat.
I made a rookie mistake here! So please disregard the fact that I have stitched the binding onto the back! You should be stitching it on the front. I have no idea why I did it this way!
Now it's time to sew your binding to the front of your place mat. Start in the middle of one of the long side remembering to keep a longish tail for joining the binding.
Now start to sew down your binding. When you get to your corners, sew up until the corner then flip the folded binding in the other direction so that you don't sew down the overlapped binding for the mitred corners.
Flip the place mat over and pin/clip the binding in place making sure to fold the corners correctly. Then start sewing it in place. You could hand stitch it if you like, but I'm too impatient for that.
The coasters pictured are made using this tutorial. And for Part 1 of this tutorial go here.