One of the great things about being a Stampin' Up demonstrator is the resources available to us! Stampin' Up has a site, exclusive to Demonstrators that Demonstrators around the world can post cards they've made, share techniques, chat with each other and more. The site is called Stampin' Connection.
I found the instructions for this technique on Stampin Connection, by Diana Gibbs. I CASEd the layout for this card from one she had made. You start with a neutral color cardstock, and then cover it in Versamark, and then silver embossing powder, heat and repeat this process a few times until you get a nice solid silver. After it is nice and cool cut out square and run through an embossing machine. The folder I used here is not SU, but it's what I had on hand. then you just adhere the squares down, and Viola! I used Ballet Blue, Whisper White, and Basic Gray cardstock. Then I finished it off with Whisper White Taffeta ribbon.
Now I didn't start out making this card! Actually I was attempting to make a Faux Tapestry (I think that is what it is called) card, but I didn't do it right.So that is when I grabbed my silver embossing powder. So there are a couple of places that you see some color coming through the gray. If you do it the right way, you won't see that! You will have a nice solid silver. But you know what they say "Practice makes perfect" and I am definitely trying this card again! I am not giving up on that tapestry card either! :)