Elf house on a tree! That would be cute in the garden, especially in the tree over grown with ivy. How about some battery tea lights in the windows during outdoor parties. I hear the fairies/elves whispering "home school project" in my ear.
Fairy Gardens (also called miniature gardens) are an enjoyable approach to reveal your creativity in a little space. If you want to alter the look in the fairy garden miniatures ideas, below are some great suggestions that might help you.