4 Panel Weeping Willow” (2006), for example, included 50 pens suspended from the branches of a Weeping Willow tree over four panels placed horizontally beneath the tree. The drawing is ...

This is fine for drawing simple, rough shapes, but if we want curves and more unique shapes we need to do a little more work. Start off by creating a point on your canvas with the Pen Tool.

(Credit: SIP, Guy Luethy et al.) Where SIP Lab’s DeltaPen comes in as an attempt at a smart pen that acts more like the pen of a drawing tablet, just minus the tablet.