TWICE Nayeon's "rabbit hat" has spread to Japan as well. A Korean toy company released the hat and intended to sell around 10,000 pieces. More similar pieces have appeared (without an official licensing deal) and approximately 130,000 pieces were sold in a month.
Nayeon’s famous rabbit hat is spreading in Japan too. It was sold ~130,000 times in 1 month apparently. Stores are advertising it as “the hat made popular by Nayeon-chan's video” @JYPETWICE https://t.co/S3NISTR0J9 pic.twitter.com/CwsKUtf0ST— 미사 (@misayeon) January 4, 2019