I did this technique in my class last week and wanted this set. Well, it came in yesterday and I made these cards. Using the foam sheets cut a piece a little larger that your wood block. Heat with heat gun on one side for about 30 seconds, flip and heat back for another 30 seconds, then flip and heat the front again, then with an ready and inked (I used Brown Stazon) stamp press it into the hot foam sheet and hold until it cools. You can tear the foam sheet or cut it. I sponged the edges with the brown stazon. It really does look like tooled leather.