Hot Topic has listed this girls shirt (it says dolman top, but I'm a terrible gay and have no idea what the fuck that means) of the Kerplunk flower. Pretty awesome design, which we first saw last year on this t-shirt Green Day released for City of Hope charity (that shirt is still available here).
You can purchase this shirt on HotTopic.com
You can see more Green Day merch from Hot Topic right here.
Thanks to Eliza (gloria123 on the forum) for sending this news.