Halloween // Family Costume Ideas

Hello everyone! I am needing some ideas for Halloween costumes for my family. My husband and I will be welcoming twin boys in mid October and we have a 2 year old daughter. I have absolutely nothing in mind, so I'm needing some help getting the brainstorming process started.

I need costumes for: 1 adult male 1 adult female 1 female child (2 years old) 2 male children (newborns)

TIA 👻