14. Giant Cardboard Spider Web
Spin a web of terror across your porch or living room wall with a giant, intricate cardboard spider web. Cut a large circle from a sheet of sturdy cardboard, then carefully sketch out a radial web pattern, starting from the center and branching outward with concentric, curved lines. Use a utility knife to cut out the negative spaces, leaving behind a delicate, beautiful, and surprisingly strong web structure.
Paint the web a stark, matte white or coat it in glow-in-the-dark paint for a spectacular nighttime effect. You can also spray the web with adhesive and sprinkle it with silver glitter to catch the light. Mount the web in a corner of your room or porch, and complete the scene by adding a giant, fuzzy DIY spider with long, bendable cardboard legs reaching out across the wall, ready to catch its next victim.