Vintage - used - hand blown glass feeder for hummingbirds, swirls of yellow with colored streaks. Very pretty and eye-catching!
This is made to hang on a cord or a chain like a witch ball, and holds a single sipper tube with a rubbery cork. The glass orb is about 5 1/2" in diameter.
This needs cleaning, or maybe a whole new cork. I'm not sure how to clean this safely for birds to use, so I've left it just as a I found it.