Draw a tall tombstone outline on the cardboard, approximately 3 feet tall and 18 inches wide. Add a curved top for a classic design and cut it out carefully.
Cut 2-inch-wide cardboard strips for the edges and glue or tape them along the sides to give the tombstone thickness.
Create a frame or emblem in the center using smaller cardboard pieces. Glue them to the surface for dimension.
Tape all seams and edges firmly to keep the structure stable.
Tape all seams and edges firmly to keep the structure stable.
Spray the entire tombstone with black paint. Let it dry, then lightly dab on gray paint with a sponge to create a stone effect.
Finally, use craft glue or adhesive spray to attach moss along cracks, edges, and random patches for a decayed look.