sunflower house - Plant morning glory flowers with them and the morning glory is a vine that will wind around the sunflowers and bloom. Kids love to play in it and to help plant and grow their own flowers.
Build a sunflower house plant a few corn in with the sunflowers. This is a companion planting secret: the corn drives Carpophilus beetles from the sunflowers, and the sunflowers protect the corn from fall armyworms
Sunflower House: fun to play in once the sunflowers grow tall! I have seen this done with on large square with side "rooms" and an entrance area. Fun for kids especially if they plant seeds and tend .making their own playhouses.