Vintage Patinated Copper Diving Suit Weighted Diver Helmet Reservoir

Construct the main helmet shell by laminating layers of cedar and carving a spherical structure to ensure structural integrity against the elements. Sand the exterior to a smooth, uniform finish to prepare the surface for the copper leaf application.

Apply a reactive copper patina solution to the wooden surface, creating a weathered, antique aesthetic that mimics aged maritime hardware. Seal the finish with a clear outdoor spar varnish to protect the patina from environmental degradation.

Install a transparent acrylic tube vertically through the center of the helmet, serving as the core gravity-fed seed reservoir that mimics an air intake pipe. Attach copper-finished mesh at the base of the helmet to allow birds to perch while accessing the seed flow.

Mount the helmet assembly onto a weighted base plate reinforced with brass rivets to give the piece a sturdy, industrial character. Add a hinged rear hatch secured by a miniature latch, allowing for convenient access to refill the internal seed chamber.