We visited a bamboo craft centre and found that they made human hair out of bamboos. A picture of a man using ordinary kitchen knife to slice open a bamboo stick and continue splitting it into fine strands of similar diameter to emulate hair strands and then put them together to form different  locks of hair as seen in the photograhs. It's truly a work of art.  You can also see other bamboo creations displayed at the centre.  Very interesting indeed. Cheers