Accurate pinning and pressing of a hem is an important finishing step in garment/project construction. I always do a slight gathering stitch when I surge my curved hems but an ironing board often cannot provide the necessary surface area or support I need. I have a pressing aid that has proven invaluable on straight as well as curved hems. I made my own pinable pressing board--click on photo above for a captioned photo album. I used cardboard from the box of a gardening item (it had a glossy picture side), cotton batting, and two layers of muslin. I was able to cut two 2ft x 2ft squares from the side of the box. I layered a 2x2 piece of batting over the back of the cardboard, secured by a temporary adhesive spray and stacked the two pieces with the batting piece on top. I then cut 2 pieces of muslin about 27in x 27in and laid them flat on the table. I placed the cardboard stack with the batting side down, glossy side up, on the muslin and wrapped muslin over the back of the cardboard. The muslin was stapled down (the staples did not go through) and then I covered the staples and the edges of the muslin with sealing tape. I use this on my cutting table (actually a library table) on top of my vinyl chair mat cutting surface. (See review here Click Here ) Some moisture will go through all those layers so protect your tables with a waterproof barrier.