DIY - Glow in the dark pots with mums for fall/Halloween. Buy a flower pot that you really like and use Rustoleum's Glow-in-the-dark paint to paint the pot. During the day, the paint will absorb the sunlight and at night the pots will glow.
cool 10 Outdoor Lighting Ideas for Your Garden Landscape. Is Really Cute 1 - Fire Pit Wood LED Lighting source Brilliant ways to amp up your yard or porch for the holidays! If you need a rack: Easy Outdoor DIY Firewoo.
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.