Install a rubber band at the center of each 5.5-inch dowel at the red locations below. Loop one end around the rod, twist it once, loop it around again. Repeat one more time so the rubber band is wrapped around the dowel 4 times.
Hot-glue the 5.5-inch rod and spring connection to the bottom of one sheet of cut cardboard leaving space on each side of the rubber band to ensure that the glue does not come in contact with it.
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