Sketch Series: Water (Flickr Set) January 27, 2009 Water: Wavelets, ink on 3x5 index card, 2009. Click image to see full-size. I've uploaded a new set of sketches to Flickr: Eight ways of looking at water. Each drawing is made with a Pigma Micron #1 pen on a 3x5 index card. I love index cards.