On the weekend I decided to makeover my ironing board cover which was looking a bit sad...
I cut some strips of fabric and joined them so they were long enough to go right around the edge of the ironing board. I turned the board upside down and traced it on another piece of fabric, which I cut out (including a 10cm seam allowance). This piece of fabric looked appropriately board shaped.
I folded the strip piece in half (right side out) and sewed it to the right side of the edge all the way around the board shaped fabric (it created a sort of tube).
I didn't even bother to finish the seams.
I flipped the edge over and threaded some elastic through the tube of fabric around the edge.