One half of a used coconut shell, some paint and brush, a screwdriver, a small length of coir, thread and some grain.
1) Clean the coconut shell well and paint it any colour of your choice. Then pierce one eye of the coconut below with a screwdriver to make a hole.
2) Insert the coir and knot the end below the eye that you have pierced.
3) Tie the coconut feeder on your window or balcony. Place some grain inside the feeder and very soon you'll find birds visiting it.