Newsletter
The first mention gives the date, the service, the supplies list with the drop-off deadline, and the children's schedule change. The last call is the supplies count, the final drop-off, and what children bring on the day.
Social
The reminder post the Friday before is the service time, what children bring, and the children's new schedule. The day-of post is a photograph from the blessing, with the supplies total.
Sunday Announcements
Announce it two Sundays before with the supplies list and the drop-off deadline, in the main service, and a reminder in the children's ministry check-in area the same morning.
Website
The service time, the supplies list and drop-off hours, where the supplies go, the children's ministry schedule for the school year by age, and the check-in procedure. Published three weeks out.