SMU business graduate Sunny Chuah toyed with the idea of using bamboo to build a functional bicycle. Three years on, the idea has evolved into a full-blown business venture, with Sunny operating a showroom at the Singapore Handicraft Building and over 300 bicycles sold. The 29-year-old works with craftsmen from Cao He village in Guangzhou, China, where the bamboos are selected and crafted into parts. They are then assembled in Singapore, and shipped for sale worldwide. An adult bicycle can weigh up to 12kg and retail from US$1,299 (S$1,600) upwards.