I thought since I was sharing my desk, I would tell you how I made my desk blotter. The great thing about making your own (besides being able to decorate it) is you can customize the size. Mine is 22x12 1/2 inches. I got the idea from Mary Engelbreit Magazine. I took a piece of foam core cut to the 22x12 1/2 inches. I cut a piece of silver paper (left-over wrapping paper) an inch bigger. I wrapped the paper around to the back and glued and taped the edges.
Your corners do not have to be perfect because the will be covered up. Next out of heavy card stock I cut a piece 12 1/2x3 1/4. I wanted pockets to slide small cards in. So I cut a pieces of silver paper 4x5, gave it an extra inch to wrap over foam core. Then I cut a piece of the blue swirl paper (stationary) to fit the rest of the strip but an inch bigger. I wrapped the paper on the inside, side. So now I have my side piece. First I wrapped the top and bottom to the back. This is were you will see your corners so be careful. Again gluing and taping edges. Then finish wrapping the outside, edge to the back, gluing and taping. Now as you can see in the pictures there are places to slide in cards.
There are different ways to make a desk blotter, this is how I made mine. I am not good at directions. I would rather make it with you. If what I have written does not make sense, please let me know.