Halloween baby shower?

So I know it’s still early to plan a baby shower, I’m only 16 weeks, but I was talking with my family and with everything going on I thought doing a “co-ed and children” baby shower on Halloween. I thought it would be cute and the kids can have somewhere to dress up and safe candy that we wouldn’t have to check. It would only be people that have already been interacting with each other due to work, child care, etc..

Any ideas or suggestions?