A man wear a phallic-shaped hat during Kanamara Matsuri (Festival of the Steel Phallus) on April 1, 2018 in Kawasaki, Japan. The Kanamara Festival is held annually on the first Sunday of April. The pen*s is the central theme of the festival, focused at the local pen*s-venerating shrine which was once frequented by prostitutes who came to pray for business prosperity and protection against sexually transmitted diseases. Today the festival has become a popular tourist attraction and is used to raise money for HIV awareness and research. (Photo by Carl Court/Getty Images)

A humanoid robot named Kansei, meaning “sensibility” in Japanese, makes a facial expression depicting “happiness”, next to the word “Love” during a demonstration at a laboratory of Meiji University's Robot and Science Institute in Kawasaki, south of Tokyo in this June 4, 2007 file photo. Three-fourths of robot installations over the next decade are expected to be concentrated in four areas: transportation equipment, including the automotive sector; computer and electronic products; electrical equipment and machinery. Labor costs have climbed in countries such as China that have been popular for outsourcing production, while technological advances for robots allow them to be more flexible and perform more tasks. (Photo by Yuriko Nakao/Reuters)

Tao Xiangli gets out of his homemade submarine after operating it in a lake on the outskirts of Beijing September 3, 2009. Amateur inventor Tao, 34, made a fully functional submarine, which has a periscope, depth control tanks, electric motors, manometer, and two propellers, from old oil barrels and tools which he bought at a second-hand market. He took 2 years to invent and test the submarine which costs 30,000 yuan ($4,385). (Photo by Christina Hu/Reuters)

In this October 21, 2015, file photo, a young man rides a hoverboard along a Manhattan street toward the Empire State Building in New York. More than 500,000 hoverboards are being recalled after reports that they can burst into flames. The Consumer Product Safety Commission said Wednesday, July 6, 2016, it has received 99 reports of battery packs in the two-wheel motorized scooters catching fire or exploding that causing burns or property damage. The recalled hoverboards were made by eight companies. (Photo by Kathy Willens/AP Photo)

Festival goer with phallus logo t-shirt during the Kanamara Matsuri Steel Phallus Festival at Kawasaki, Japan on April 2, 2017. The Kanamara Matsuri or Festival of the Steel Phallus is held on the first Sunday of April at the Kanayama shrine. The shrine celebrates a legend of a steel pen*s and was frequented by prostitutes who wished to pray for protection from sexually transmitted diseases. Visitors now wish for easy delivery, marriage and matrimonial harmony. Because of the large steel phallus the unusual festival has become a tourist attraction attracting many overseas visitors and is used to raise money for HIV charities. Phallus shaped candy, carved vegetables, decorations, and a big parade are all part of the festival. (Photo by DELETREE/SIPA Press/Rex Features/Shutterstock)

Hostesses pose for photos with a police officer on the motorized vehicle during the third plenary meeting of the 11th National Committee of the Chinese People's Political Consultative Conference (CPPCC) at The Great Hall Of The People on March 10, 2012 in Beijing, China. (Photo by Feng Li/Getty Images)

A visitor tries the Segway “S-Pod” motorized chair on the manufacturer's booth during the 2020 International Consumer Electronics Show (CES) at the Las Vegas Convention Center in Las Vegas, Nevada, USA, 08 January 2020. (Photo by Etienne Laurent/EPA/EFE)

A Cambodian man sells shoes on a motorized cart travelling along a street in Phnom Penh, Cambodia, 30 April 2020. Cambodian authorities are enforcing strict traffic rules in an effort to cut down traffic accidents on the road as a new land traffic law will go into effect in the beggining of of May 2020. (Photo by Mak Remissa/EPA/EFE)