Each year, scores of preventable accidents result from pilots miscalculating the amount of fuel they have remaining in their tanks. You can't trust light plane fuel gauges, but you can completely trust these handy Fuel Hawk gauges.

Made of heavy, clear plastic, each "Fuel Hawk" works like a drinking straw: simply insert into the fuel tank until it touches bottom, put your finger over the end, lift it from the tank, and read from the graduation markings on the side. They're ideal for when you need to take a less-than-full fuel load due to weight considerations or when you're not quite sure how much is really in there.