You might swear that these canes by the UK’s Lizzi Holt (BizziZizzi) have concave centers. When you finally agree that they don’t it may take you some time to figure out the cane’s optical illusion.

Lizzi is drawn to mysterious spiral forms that pull you into their orbit. See her Peace Pebbles and watch her ride the peace wave. Follow her on Instagram to see where she takes these tricky canes.

If you guessed that Lizzi was inspired by a class with Melanie West, you’d be right. She’s been dreaming up new patterns ever since a British Polymer Clay Guild class with Melanie in London last fall.