Just as an update, as of 1/10/11, Amazon (Ken's Sewing and Vacuum) had them for $12 now!
At the moment, I use a quilters pressing board under my serger (large rectangle board covered in cotton duck sells in Joanne's for $24 which you can get for $12 or $10 depending on your coupons). I needed something asap.. and already had the board. My serger sits on top of my 1923 Singer walnut cabinet... so I don't want any scratches or bleeding to happen to it! I may make a padded batting filled pad out of some leftover homedec materials instead..