If you're looking for a tutorial with finished seams and overall 4-H quality, this is not that tutorial. But if you are looking for something simple, quick, with imperfections no one will notice, this is for you!
Supplies: Countertop Ironing Board (under $7 at WalMart) and 1/2 yard of fabric.
Cut around half of the ironing board leaving a width of about 3 inches.
Remove board, fold fabric in half, then cut around to make fabric symmetrical.
Iron approximately 1" in all the way around the piece. I left the raw edges - who is going to look underneath the ironing board?
Sew around the fabric, leaving an opening on the flat, short end to string your twine through the casing. I chose to use a zigzag stitch to overlap the raw edge.
Tape one end of a twine roll, then spear with a safety pin. Use pin to guide the twine through the casing.
Place ironing board on top of the fabric, pull twine, and tie.
The process is a little easier when you don't have a "helper" scampering about, but it does make things more interesting!