Our department is called Tua and we found out
Why not have a Maurtue as a birthday calendar. As said, so done. The children will help decorate the tua with children's needles and leaves.
Moses and other things we find on walks in the forest.
This is in a ward with 1-2 year olds.
And yes, we know ants actually have 6 legs, but ours are unique and only have 4.