Bruce Lee's Whip/Stick

[Queequeg]

I've got another film weapon question.

I've been looking for a (bamboo?) stick like the green, twisted stick Bruce Lee used in "Game of Death" against Dan Inosanto (I'd be grateful to anyone who can point me to one for sale, by the way.)

youtube video: http://www.youtube.com/watch?v=ASKPXEJxzfY
(action figure picture here, if it helps)

Also, does anyone know if it was just a film prop, or are there real sticks as flexible and tough as that? I've never seen actual bamboo in a naturally twisted shape like this, let alone in this color:
(screenshot from above video)