Here’s a fun project for kids and grownups alike: Upcycle empty bottles to create solar garden lighting. The Solar Bottle Lantern Kit, $12.95 from Gardener’s Supply, consists of a rubber stopper with three short LED light strings attached. Just insert the light strings into a bottle of your choice and place the stopper in the top of the bottle. A small solar panel on the top charges the battery so that when dusk falls the twinkling LED lights begin to glow. Display the weatherproof project anywhere you like, year round.