The Backyard Naturalist stocks suet cage feeders, like this one with a copper roof that holds one suet cake.

Deluxe Suet Cage with Copper Roof

The Backyard Naturalist recommends suet feeders, like this one with an electroplated copper roof.A deluxe suet cage with an electroplated copper roof to keep suet protected from weather. Great for feeding clingers year-round. Easy to clean and disinfect.
Capacity: One standard size suet or seed cake
Dimensions: 3.75 (D) x 6.75 (W) x 11.00 (H) inches
Weight: .47 lbs.
Construction: Powder-coated wire and electroplated copper
Mount: Hanging
Squirrel-resistant: No