I know how to do the most basic arrows, but it looks like the line style is fixed, you can't use a paint brush or any other drawing tool for the line, its just a line and perhaps some strange windows 3.1 era pixel tile patterns.
http://www.clker.com/cliparts/S/Q/d/C/3/n/arrow-left.svg
http://thumbs.dreamstime.com/z/lightning-sketch-crayon-painted-flash-electricity-symbol-white-back-35322751.jpg
Any way to do that kind of thing? Crayon or inky type arrows?