FIONA Reading thought she was hallucinating at first and we don't blame her.

All was normal until Fiona spied what looked like a giant potato head on the horizon while driving along a quiet road near Bindi Bindi, northeast of Perth, in Western Australia.

"Much to our relief it was just a big rock the locals had placed on the banks of the dam and painted a face on, no doubt to relieve the boredom of the passing travellers," Fiona said.