$4,000 Water Games
Five people on each side grip their choice of 20 handles for leverage. Although you'll need to blow the Water Totter up with an electric air pump, it's well worth the effort.
Implications - Think of the Water Totter as those huge, inflatable castles you see at a kid's outdoor birthday party -- only more exciting and on water. So instead of just laying on a lifesaver, bounce around on this whimsical item for something a little more exciting.