Connect a clean bicycle wheel securely to a wooden "Lazy Susan" using screws to fasten two or more "U" shaped pipe clamps over the spokes of the wheel and onto the plate portion.
Fasten an angle bracket on either side of the wooden pedestal portion of the "Lazy Susan", ensuring that the lower legs of the angle brackets are flush with the bottom of the pedestal.
Attach the whole apparatus to a tree or a preset wooden post with screws through holes in the remaining legs of the angle brackets.
Spray paint the assembled Ferris wheel, in any color you prefer, with outdoor grade paint rated for wood and metal; and then let dry according to manufacturer's recommendations.
Use pieces of rust proof stainless steel or galvanized wire to fasten corn cobs to the spokes of the bicycle wheel -- making sure to bend the ends of the wires over into loops with pliers so they do not injure the squirrels who come to feed and play.
Retreat to a comfortable viewing station and enjoy the show!