MY MIND'S EYE-The Sweetest Thing Collection-Tangerine Series: Acrylic Stamps. Clear acrylic stamps are a fun and easy way to add stamped designs to your paper crafting projects. Use with any acrylic block (not included)-- simply position the image exactly where you want it then stamp! This package contains twenty-one clear acrylic stamps of varying shape and size mounted on a 6x4 inch backing sheet. Imported.