This lamp appears to be covered by clovers. However it is made of 30 squares. As shown in the video, by sliding between short and long slits on the card, a sphere is formed. It is an easy painless project.
Basically you need thick sketching paper (225gsm) or thin card, so that the square can be bent temporarily in the process, while maintaining its original shape.
Other tools include craft knife, double-sided tape and super glue.
Check out the fully instructed video.