Here is an idea for a vertical garden in a classroom (plus a fish tank). This could also work in other places -- homes, places of worship, community centres, etc. Maybe even outdoors? With a mesh covering over the fish tank, the cats couldn't get in.
Beautiful Garden Path Designs and Ideas for Yard Landscaping with Stone Pebbles
Make your own living succulent art If you don't have the time to plant a living wall, you can get the same dramatic effect by framing a garden of succulents. Build the frame yourself and plant your own cuttings or buy an all-in-one succulent garden kit.
Old Bathtub turned coffee table/planter! via the Garage Sale Gal I actually have an old claw foot tub in my barn, I was thinking of making it into a small koi pond, but I think I like this coffee table/planter better for our vacation home.