Amazon.com : Sharpie Permanent Markers, Fine Point, Black, 12 Count : Office Products
Sharpie Coloring Secrets: Part 4 - Flick Blending | Part 4 of my "Sharpie Coloring Secrets" series shows you how to "flick" blend–another simple, but fun technique to get great blending results
Permanent Marker Pen, Black | True Value
Sharpie® Black Fine-Point Permanent Marker, Package Of 12 | HD Supply