19 Pencil Drawings That Trick Your Mind Into Thinking They're 3-D. ... Diddi is an Italian designer who began working on the 3D-looking art in 2013. ... "My Left Hand" ...

Howard Lee went viral for his hyperrealistic drawings of everyday objects. ... These 3D illusions made from just pencil and paper will confuse your senses. ... The concept for the hand illusion, ...

Paul Cadden, 50, from Glasgow, uses his incredible eye for detail to recreate photos in black and white, often using only a graphite pencil or watercolours.

New sensors being researched for a future Apple Pencil could allow users to use the device to trace both 2D and 3D objects, and send the data back to a connected iPad or Mac.