BUNGU-CHAN?
BUNGU means stationery in Japanese.
悩んでいたら、長女が手帳を覗き込んで、髪留めに手帳の形のアクセサリーをつけたら?というのでつける。
When I was struggling with this, my oldest daughter looked at my notebook and said, "Why don't you put an accessory in the shape of a notebook in your hair clip?" So I put it on.