Shabbat with a three-year-old is not the Shabbat in the photographs. The thing that works is not asking them to be still — it is giving them a job that the whole table then depends on.
A child who has coloured the challah cover watches the challah all through dinner. A child handed a colouring page at the table is finished with it in four minutes.
The difference is not the activity — it is whether what they made gets used. Make the thing, then use the thing they made. That is the whole trick, and it works in any tradition that has a table.
What holds a two-year-old on a Friday night.
The craft that gets used, not filed.
The box only works because of when it appears.