Tunnel portal made from plywood, strip of pine, spackling, acrylic paints, and black primer spray for the smoke stains.
Date routed on strip with CNC.
Mortar lines cut into spackle coating with ruler and back of an Exacto knife.
Surrounding rocks were cast with heavy duty aluminum foil and plaster of paris. Except for those on top of the portal. They were shaped with a carving tool into sheetrock mud before it dried.
