Back in 2016 when I had my physical store, I did this really cute pastel kids party setup as a store display for the customers walking by. I remember thinking back then that if I was blessed with another child, I would do an ice cream theme.
If it's not fun, it's not a party. While making party's pretty is key, don't forget to make it memorable. That includes all the extras: favors, games, gifts, and sometimes a funky outfit.