Sometimes the answers to reusing are right around your own house. A single teacup for instance. It can be turned into a watering cup for birds, when it's placed out in the yard. Or a bird feeder, if you fill it with seed.
We just need to think outside the box--um, cup, or whatever the object might be. My husband took one cup that was left out of a set and with the help of a little epoxy-WAHLAH-garden art!
I also use old broken pots in my yard to liven up my garden. Who's to say what's art? I guess in my yard at least, that person will be me ;)
So, do you have any clever RE-uses sitting around that you'd like to share? Please add them to the "comments" section and thanks!