I made this Baltimore Oriole feeder last summer with my dad. We took four boards and made a rectangular frame. The bottom board we used a drill press to drill two holes for the little jelly(grape) cups to sit in. Then we nailed a board on the back and put two screws in it to hold the oranges. I used four eye screws and some wire to hang it.
Below are some photos I took last summer of some beautiful Baltimore Orioles. They sure love oranges. Can't wait to see them again this year!