A simple yet interesting piece of equipment, the Wing Chun kicking dummy
http://www.youtube.com/watch?v=vaLuO1wIHvM
http://www.youtube.com/watch?v=H1G5VpeJFC8
The Devastating Kicks of Sum Nung Wing Chun by Antony Casella, Georgia Dow, & Rene Ritchie
http://www.wingchunkuen.com/sumnung/art ... kicks.html