Wong Foon-tai, elderly volunteer of The Smart Aging Innovation Adventure Project, had 3 years of experience in designing and producing 3D printed products. The products are used to better the lives of elderly living alone. 3D printing not only can create products that provide convenience to the elderly, but has also become a good platform for Wong to channel his creativity.  Recently, he started to instruct young volunteers the 3D printing techniques. Retirement life can also be colourful!