Summer means swimming, fishing, boating, and other water-related activities for many people. It’s good, relaxing fun until you lose something overboard. With the WaterBuoy, you won’t have to worry about losing your keys, fishing tackle, camera, or anything weighing under 2.2 pounds. With the WaterBuoy attached, your dropped items will float to the surface within seconds, before water currents have had time to carry it too far away from you. The miniature float has a trigger mechanism that’s resistant to splashes, but it will activate with water submersion. When triggered, a strong rubber balloon inflates to lift your item to the surface. (By the way, if your item exceeds that weight limit, simply attach extra WaterBuoys to it.) It even has a high-intensity flashing LED to help you find your lost item at night; the light should continue to flash for 24 hours. The list price is about $23 (in US dollars). The WaterBuoy site lists retailers in the US, Europe, and Asia.