Can you build a device that can fly, sail and manoeuvre through grasslands, deserts and rocky beaches without using a motor or electricity? On top of that, you only have three hours and $300 to do it. Eighty-eight teams from 46 primary and secondary schools tapped their creativity and came up with such a device at the Triphibian Creative Challenge last week. The contest was organised by the Hongkong Federation of Youth Groups as part of the pre-arrival programmes of the 'Around the World in 80 Ways' Adventure, with the motto 'Yes! Can do!' Amid loud cheering, some of the strange looking models were stuck on the waterway. More landed back on the platform right after taking off. Most came to a halt in front of the 0.3-metre slope before the end of the track. The team from SPHRC Kung Yik She Secondary School won the senior secondary school category. The students started building their model from a mooncake box and after several designs, built a boat. 'We were confident about our design,' said Chu Wing-yan, 14. The 'Around the World in 80 Ways' Adventure was the brainchild of three physically disabled people and another with heart disease. The team set off from Britain last month on a bid to go around the world in three months using 80 means of travel such as swimming and riding elephants. They will spend a week in Hong Kong early next month, during which the Hong Kong Jockey Club will host a series of events. William Yiu Yan-pui, executive director of Jockey Club's Charities and Corporate Secretariat, said the team was an inspiration to Hong Kong people, especially youngsters. 'Let's not lie to young people. There are problems in life, but we can overcome these problems,' he said. 'The last thing we want from young people is them saying 'No, we can't do it'.'