M-Tro Camera by Juan Lee, via Behance
Sketches by stefan #id #product #sketch
Sketch-A-Day 213: Kettles | Sketch-A-Day | Sketches by Spencer Nugent
MAC Cosmetics + Virgin Galactic by Olivia Paden, via Behance - Good Product Design Sketch
SKETCHBOOK by mike serafin at Coroflot.com.
Sketches by Matthew Choto at Coroflot.com
AUTISM+SNOWBOARDING on Industrial Design Served
Hand Sketches by James M. Paulius at Coroflot.com
Sketching vs. CAD: which to use when? This question seems to come up a lot in classes and when talking with product designers.
Mouse Assembly Study 01 by Sihyoung Ryu, via Behance