Garden Salvage: took an old door and coated the glass with mirror paint, then mounted it to fence.A "secret door to nowhere". This would be good balance to the Doggy window on our board fence and make our side yard feel bigger.
For the Porch: Victorian Window Outdoor Garden Mirror. Mirrors in the garden are a great way to expand the space.
DIY Mirrored Trellis by Megan Pflug of One Kings Lane (on Design*Sponge today)