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. Moms worst nightmare are slugs
House of Hawthornes: Bowling Ball Yard Art- use 1/4 cup white vinegar and 1 teaspoon of table salt to clean pennies. Next use DAP Clear Silicone Rubber Sealant for Doors and Windows to glue the pennies onto the bowling ball.