Place a 10 x 15-inch piece of 1-inch-thick plastic foam flat on a cutting surface with the 10-inch ends at the top and bottom. Cut a triangle shape from the foam, leaving a 1-inch-wide "point" at the bottom. The triangle should measure 10 inches across the top, 1 inch across the bottom, and approximately 16 inches along each side.
Cover the entire foam triangle with orange crafts felt, wrapping the foam like a present. Use hot glue to secure the felt to the back of the foam shape, cutting away any excess felt.
Wrap the white felt around the foam so that it covers the bottom third of the foam shape and secure with hot glue, cutting away any excess where the pieces meet on the back.
Wrap the yellow felt around the top, covering the top third the foam shape, and secure with hot glue.
Choose faux fall florals and other Halloween accessories to accompany the candy corn door decoration—we spray-painted a black twig and attached artificial crows. Use florist’s wire to hold your items together, then place inside the cone and secure with hot glue so the objects stay in place.