Hiroo Iwata (L), a professor at Japan's Tsukuba University, presents his virtual reality machine 'Media Vehicle' at the Digital Contents Expo in Tokyo on October 22, 2009. A monster-slaying bad breath blow gun, a rain-simulating 'funbrella' and a navigation-aid helmet that steers users by pulling their ears: welcome to Japan's latest whacky inventions. These bizarre gadgets and more -- some of them useful, most of them fun -- went on display at the Digital Content Expo, a fair showcasing futuristic gaming, arts, medical and other technologies that opened on October 22. Getty Images logo Getty Images 1 month ago

Hiroo Iwata (L), a professor at Japan's Tsukuba University, presents his virtual reality machine 'Media Vehicle' at the Digital Contents Expo in Tokyo on October 22, 2009. A monster-slaying bad breath blow gun, a rain-simulating 'funbrella' and a navigation-aid helmet that steers users by pulling their ears: welcome to Japan's latest whacky inventions. These bizarre gadgets and more -- some of them useful, most of them fun -- went on display at the Digital Content Expo, a fair showcasing futuristic gaming, arts, medical and other technologies that opened on October 22.

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