Stampin' Up's new Blendabilities can be used for beautiful detailed coloring--or--just simple sketching like on this card. I stamped the Thank You image in Memento Tuxedo Black ink and then took various Blendabilities markers and just turned the card sideways and swiped back and forth.
So simple, yet it gives you a quality card!
Endless variations are possible if you buy several colors of the sets.
Why are these better than regular markers for something like this? Blendabilities are alcohol-based markers, and you don't see the streaking that you often do with regular markers, which is great for large area coloring.