Using a photocopier, enlarge the patterns as indicated on the free download. Trace the pumpkin patterns onto orange poster board and the eye and nose patterns onto black poster board; cut the pieces out, but do not cut out the pumpkin mouth openings.
Tape one end of the box shut and cut off the flaps on the opposite side. Place the box with the open-side down and use spray adhesive to attach the black poster board to the front of the box. Beginning with the largest pumpkin, use spray adhesive to attach it along the bottom edge of the poster board. Spacing the pumpkins about 1 inch apart, adhere the medium pumpkin above the large pumpkin and the small pumpkin on top.
Use the template to cut out the pumpkin mouths through all the layers of box and poster board by using a crafts knife. Draw pumpkin faces on table-tennis balls using a medium-tip black permanent marking pen. Allow the faces to dry. Add the pumpkin eyes and noses to the pumpkins, gather your players, and let the fun begin!