Create sleek, functional reading accessories with our Rectangle Bookmark Silicone Mold. Designed with a classic rectangular profile and an integrated hole-punch cylinder at the top, this mold allows you to cast professional-quality bookmarks with built-in tassel holes in a single pour. Made from high-grade, durable translucent silicone, the mold features a smooth interior finish that produces glossy, crystal-clear results without requiring extra polishing. Perfect for layering epoxy resin or UV resin with dried flowers, foil flakes, glitter, alcohol inks, or custom stickers to create personalized bookish gifts, planner clips, and artisan stationery sets.