Photos: Sculptures get an 'Extreme Makeover'

As part of the kinetic sculpture races, machines have to ford water. Here, Flatmo demonstrates a pontoon on "Extreme Makeover."

Flatmo is one of the pre-eminent practitioners of kinetic sculpture racing, a pastime that started informally in Arcata in 1969 and now is celebrated with a giant three-day event involving dozens of entrants each Memorial Day weekend.

Photo by Daniel Terdiman/CNET News.com