Vintage Patinated Copper Celestial Armillary Sphere Seed Globe

Construct the internal seed reservoir using a hollowed-out cedar sphere that provides a moisture-resistant core for the bird seed. Secure the center point with a threaded brass rod that will serve as the axis for the rotating rings.

Fabricate the outer armillary rings from thin copper strips, bending them into intersecting orbits to mimic an 18th-century scientific instrument. Apply a patina solution to the copper surfaces to achieve an aged, weathered look before assembly.

Mount the intersecting rings onto the brass axis using miniature ball bearings to ensure the entire assembly spins freely with the wind. Ensure the gaps between the rings are sized precisely to allow small birds to reach the seed without allowing larger pests entry.

Attach a decorative brass finial to the top of the central axis and a sturdy hanging hook to the outer frame. Install the completed feeder in an open area of your garden where the shifting shadows of the rotating rings can be observed throughout the day.