Seriously, if you're painting detail and want to keep your hand steady by resting it on something (other than the canvas itself), a mahl stick is just the thing. (It's not something to be used against people who make rude comments about a painting!) Find out more...
Painting Photo Quiz: What Art Materials Are These?
Painting Video Demo Showing a Mahl Stick in Use
Image: © Ken Wramton/Getty Images