Konad Nail Stamping. I know I'm a little late to the party, and I did buy this mainly for my daughters, but it is pretty cool. My friend Sylvie showed this to me at her house, and I had to buy it.
Here is my first full manicure using the stamps, a subtle animal print using You don't know Jacques by OPI as the base, and Gold Get 'Em by Revlon for the stamping. Several people commented on my nails when I wore this.