China's fashion has grown in a greener direction compared to smog masks of yesteryear.
These days, all the hip kids/adults are putting plastic sprout clips in their hair.
The trend has taken over the streets of Beijing.
[R]ather than a political comment on Beijing's stance towards pollution, the trend originates from an unspecified cosplay convention, after which time they became the latest hot way to maimeng (??), or act cute.