Glass soy sauce bottles have a red top, which hummingbirds are attracted to, and the nozzles on the bottle are surprisingly perfect for their beaks to suck nectar through.
For this hack, you'll need an empty Kikkoman soy sauce bottle, wire, pliers, refined white sugar, and water. First, screw off the top of your bottle and rinse it out completely.
Flip the bottle upside down and wrap two pieces of wire around either side of the bottle below the widest part. Use pliers to twist the wires together so the bottle won't slip out.
Make loops at each end with wire, then feed some additional wire or rope through these loops and tie it off at the top so that you can hang your feeder.
To make the nectar, mix 4 parts of water with 1 part of refined white sugar. Stir the mixture until the sugar completely disappears, then put it in the homemade feeder.