More ideas from Giuseppe
Penny ball - supposedly repels slugs if you leave it on the ground. Or clean the pennies nice and shiny and use it for garden art.

Copper kills slugs where as salt only dehydrates them, but they continue to live.Penny Ball for the garden. Pennies in the garden repel slugs and make hydrangeas blue. I love this idea. House of Hawthornes: Bowling Ball Yard Art