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.
Spring Start seedlings in an egg shell so cute! Start seedlings in an egg shell and, when ready, plant the entire thing. The egg shells will naturally compost providing valuable nutrients to your plants.
One more thing that you can make from a tree stump is a vase or a flower pot-Tree Stump Vases. You can even make a large flowers centerpiece that will decorate the main table or a wedding. Of course for that you’ll need a bunch of tree stump flower…
Garden Party Idea Sweet Sprout Cupcakes - made your favorite chocolate cupcake recipe, place batter in mini terra cotta pots and place in cupcake pan, bake, make green edible fondant plant sprouts. How fun!