Originally Posted by ManiacQuilter2

I used a 4' x 8' white sheet of insulation board that I bought at the Home Depot. It is easily cut (watch those do it yourself shows on DIY or HGTV) I covered it with a neutral flannel. I thought I would want to wash it so I used safety pins on the edges of the fabric and took some jewelry jute and thread it back and forth for a tight fit. Insulation is the best since it is lightweight and you can stick pins in it. I have had it for over 10 years and I have never even thought of washing it. I just use one of those lint roller I got at JAF with a 60% off coupon and it seems to do the trick. Good Luck!!