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.
Tips on Water Gardens: Felder's front yard water feature has a "fall rock" set atop some other rocks to create a cave; like cupping your hands to holler a long distance, this amplifies and aims the sound of the falling water: Garden Ideas, Wat
Cover 5 gallon buckets with burlap and twine for a super awesome look! Interesting idea for those without garden space. Make sure you punch holes in the bottom for drainage. what a great idea for those ugly buckets