i'm not sure if it's joy or mania, but it works, either way.
kids, puppies, my kittycats... DVD's, shiny pretty new boxes of movies all lined up on a shelf.... new toys in general, TV's, etc.... breathing in and out.... rolling hills, blue skies, white puffy clouds..... gardening..... cooking.... reading, reading, reading.... watching, watching, watching..... being left alone.... music.... driving on an open country road with no traffic....
i think joy, like misery, is mainly internal, but joy is easier for me when the external world is beautiful to my eyes.