Family open houses are more relaxed when children have something to do besides wait for adults to finish talking.
Choose an activity that works in short bursts
Guests may arrive at different times, so avoid projects that require everyone to start together.
Use trays and small bowls
Keeping supplies contained makes the table easier to reset between groups.
Put finished creations on display
A small display area gives children a reason to show off what they made.
Save Tomte Cake for a scheduled moment
If The Tomte Cake is part of the event, use the activity table for decorating supplies and bring everyone together for the story and reveal at a set time.