Golf Swing Feedback Whistle

I need a non-electronic whistle-based auditory feedback tool for golf swing practice. The whistle should activate only when the golf club follows the proper inside-out pathway.

Requirements:
- A mechanism for the whistle to sound based on the swing path, ideally motion activated.
- Durable and weather-resistant materials.
- Lightweight and easy to attach to a golf club or practice setup.

Ideal Skills and Experience:
- Background in golf training aids development.
- Mechanical engineering or design experience.
- Familiarity with golf swing mechanics.

The goal is to create an effective auditory cue to help improve my swing path.