SIMPLY BY THE PEN. Those graffiti letters can be derive from merely tool playing. Choose pen marker, either is black or color; your choice. Cut the tip of the pen on both side; left and right side. So you get slim tip beside round tip of pen. Try scrap some line with it, you will understand how the pen work by it. For strait line you use the slim tip horizontal and other line with vertical approach. This way of writing we used to see it on calligraphic arts. It looks good to in graffiti letters
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