Returning to your car after a long day at work and spotting a parking ticket is enough to put a dampner on anyone's day - but one Fremantle man has learned it's not the worst thing to be left on your parked car.

Local George Foster returned to his car after work on Saturday evening, only to find it covered in flour- and a strange, menacing "voodoo doll" tied to the rear windscreen wiper.

The bizarre 'voodoo doll' attached to the back of Mr Foster's car, with twigs stabbed through the eyes.

Mr Foster said his car had been parked on Knutsford Street in a two hour public parking bay parallel to the Fremantle Prison, and he had returned to his car at 5:15pm.

"I kind of couldn't really process it for a few minutes, and only when I walked round to the back of the car and saw the doll tied... I started to feel really awful and shocked," he said.