The desert if filled with found art opportunities. You can take a hike on any number of vacant lots in Palm Springs and find all kinds of interesting stuff. One time I found a full movie screen (you know the kind, they are used in classrooms and extended from a steel pole).
If you go up to Desert Hot Springs, you'll find a large selection of furniture, dishes, mattresses, all kinds of things.
I want to bring stuff to my back yard to give it a rustic look, however, my partner would kill me.