All schoolchildren learn to make paper planes when they are young, but one man has taken his hobby to a whole new height.
Edwin Cho Chi-kong has always had a passion for model planes. Like most good hobbies, it started in his youth, when he made model aircraft from plastic kits bought from toy stores.
He spent hours assembling the models and then meticulously decorating them to look like their full-sized counterparts.
All too soon the realities of daily life took him away from his first love, and he shelved his dream.
But four years ago, when he retired from his government job, his old hobby beckoned, and Cho returned to it with a passion.
Instead of buying kits, Cho set himself a new challenge - to recreate planes out of paper.
With the internet replacing toyshops as his hunting ground, Cho began printing out designs he found on online forums and websites.