Here are the things you will need:
- 1 or 2-liter plastic water bottle, 3-1/2 inches in diameter
- 6-1/2-inch clay pot
- 7-1/2-inch clay saucer
- 9-1/2-inch clay saucer
- Eye bolt, 1/4 inch by 5 inches
- Two 1/4-inch nuts to fit eye bolt
- 48 inches of picture-hanging wire
- Fishing swivel
- Small tree branch, about 18 inches long
Source: http://www.allthingsheartandhome.com/2013/04/08/diy-bird-feeder-from-a-flower-pot/