If you do any blog surfing, you've probably seen a whole lot of this technique around lately. It's not a new technique, and I'm not sure who we can thank for it's resurgence, but Dawn has a great video here. I decided it would make the perfect technique for a Stamp-a-Stack. I've done my version in black and white and black and vanilla, with just a splash of colour. I've used the Blooming with Kindness stamp set:
Here's another one using Daffodil Delight for my 'splash':
Edited to Add The measurements for my layers are:
White/Vanilla: 14.3 x 10, 10 x 6.7, 6.9 x 3.7
Black: A5, 10.5 x 7.2, 7.4 x 4.2
I know they are odd numbers, but I worked it that way to get maximum use out of my cardstock that I was cutting for the class. Really you could just round up or down if you are only making one or two of these cards.