Tim Holtz Idea-ology Halloween 2025. Create ghostly layers and see-through scares with Tim Holtz Idea-ology Halloween Transparencies. These acetate sheets feature eerie webs, bats, and spooky motifs that add mystery and depth to your haunted creations. Includes 12 printed transparent acetate sheets with spooky designs. Features spider webs, bats, and seasonal graphics constructed of plastic. Perfect for layering in journals, tags, and shadow boxes. Adds a subtle eerie dimension and texture. Works beautifully with lights and dark backgrounds.