Heavy metal alternative

The latest tea kettle deer deterrent had to make do with nylon rope instead of metal chain for the stretch that serves as the pendulum.

I'm thinking it works better, and is lighter, which might be easier on the motor and help to increase overall longevity.

This particular type of nylon rope was difficult to tie into a nice looking knot, so I wrapped the ends with electrical tape and then secured the tape with a small section of electric fence wire which seems to work well and look nice as a low budget crimping technique.