Themes ?

Brandy • 27 and the mom to 2 beautiful girls, Chloe Elizabeth and Mckenna Leeann 💕
I'm due June 6th with a little girl, Chloe Elizabeth. Honestly can't think of a any themes I want to go with. We had a boy theme picked but don't have s girl theme. I'm 23 almost 24 weeks and I'm not sure where to go with this. I've thought possibly scooby but my SO suggested little mermaid. We both like green so def want to inccoperste it some way some how. But we still aren't sure. Anyone want to throw out suggestions. Doesn't have to be green inspired. So anyone please help with ideas :)