6. The Rolling Can Obstacle Course
This design turns the feeder pole into an obstacle course using empty aluminum cans or plastic cylinders that spin freely when squirrels attempt to climb.
Why It Works
The spinning motion destabilizes squirrels, preventing them from gaining traction or climbing upward. Birds, however, fly directly to the feeder and bypass the pole entirely.
Materials Needed
- Empty aluminum cans or plastic bottles
- Drill
- Wire or strong cord
- Feeder pole
How to Build
Punch holes through the top and bottom of each can and thread them vertically onto a wire or pole sleeve. Allow them to spin freely around the pole. Stack several cans in a row for maximum effect.

Best Placement
Install on poles that squirrels frequently climb, ideally four to five feet above ground level.
Advantages
- Uses recycled materials
- Visually interesting
- Highly effective
- Weather-resistant
This method works well in playful, creative garden spaces and can be customized with paint or patterns.