Clean your plastic shoe box with a simple bleach and water solution. This will prevent any bacteria from contaminating your soil. Dry the box completely.
Set the lid to the side and turn the box upside down. Using your solderer or drill, make a series of pencil eraser-sized holes in a row on both sides of the bottom of the container, about every two inches. This will allow your soil to be bottom-watered and not disrupt the root growth. Make a few holes in the center of the box.
Turn the box over, and place it on the watering tray. Fill the box with moist potting mix, a little more than half way.Gently tap the mix down. You do not want it too firm, nor too loose.
You will now add the cuttings. If you are using powdered root stimulator, dip the ends of each of the cuttings in the powder, coating the end of the cutting and the area directly above it. Push the cutting into the soil, or poke your finger in the soil and make a hole to place the cutting in. Continue this process until you have filled the box with cuttings, spaced about a half inch to an inch apart. You can fit many cuttings in the box this way. Pour water into the watering tray and allow it to soak into the soil from the bottom. You will be able to tell when you are done watering, as the top of the soil will appear wet..
If you are using liquid rooting hormone, mix the hormone as directed. Push your cuttings into the soil, and fill the box, as indicated in step 4. Pour the water and rooting hormone mixture into the watering tray and allow it to soak into the soil from the bottom. Depending on the strength of your rooting hormone, you will either always water with this mixture, or alternate plain water and rooting hormone.
Place the lid on the shoebox, and move it to a warm, dark place. Plants needs moisture to root, but not sunlight. You will want to lift the lid every few days or so to make sure your soil is still moist. This process calls for consistently moist soil. If you are getting mold or too much condensation, prop open the lid for an hour or so each day. As the soil dries out, add more water to the tray. When you can pull on the plants, and they don't come out easily, they have formed roots and can be transplanted.