Paint yellow around the rim of a paper plate; fully cover at least 3 inches around the edge using the foam brush. Let dry completely.
Using a compass and scissors, draw and cut a 3-inch-wide white circle and a 6-inch-wide orange circle. (For younger kids, make 3-inch-wide and 6-inch-wide circle templates for them to trace onto the cardstock and then cut out the colored circles.)
Glue the orange circle to the center of the plate and then the white circle in the center of the orange circle; let dry.
Once glue is dry, cut the plate in half, cut each half in half, and each quarter in half (so you end up with eight slices from one plate).
Continue with more plates as needed for length of banner desired.
Punch a hole at each corner of the candy corn rim (in the yellow portion) and thread a short length of black ribbon into one of the holes from the back and into the hole of another candy corn wedge from the back; knot the ends of the ribbon together. Continue to make a chain of candy corn wedges. Tie longer ribbons to the outside holes of the end wedges to use to hang the garland.