I saw this video yesterday where Claudine Hellmuth and Tim Holtz were using his masks and embossing the sticky side of her Sticky Canvas. Well wouldn't you know I had some cheap sticky back foam that didn't sell at my garage sale a couple weeks ago. So I took a break right then and there to see if it would work the same and it did. Now I am glad it didn't sell.
Uncover the sticky side of the the foam. Lay whatever mask you have laying around and start working the embossing powder all around the mask. Knock off the excess powder and remove the mask. Make sure to remove the mask. Heat with the heat gun. Now place a coordinating color of powder on the rest of the sticky area. I love the way they turn out and cheaper than heck to make custom embellishments.