The same day of my bungy jump, I began the day by becoming a Zorbonaut at Zorb's facility in Rotorua. You can read about Zorbing here.
In the following videos, you'll see "Liquid-Zorbing" on a land course. Liquid Zorbing involves dumping at least one human and a bucket of water or two into a big plastic sphere, and then allowing gravity to take over to propel yourself down a mountain. While Zorbing is classified as an adventure activity and you need to be able to "let go" to enjoy it, it isn't nearly as frightneing as bungy jumping. Just walking up to the jump point for the bungy experience is much more terrifying. Although the Rotorua drivers make the drive up to the top of the hill a rough ride. :)
These are the Zorb video files. The link to the Windows Media file is here. And the QuickTime version (without audio) is here.