WoodRiver Block Plane Sack-Up - Hand Planes - Amazon.com
Special Hobby 1/72 Sack AS-6, by Ryan Grosswiler
WoodRiver Jack Plane Sack-Up - Hand Planes - Amazon.com
File:US Navy 030327-N-1290G-003 Plane Captains take a relax and play some "hackey-sack", on the flight deck aboard the aircraft carrier USS Harry S. Truman.jpg - Wikimedia Commons