HOT OFF THE PRESS-Acrylic Stamps. Use these stamps to create beautiful homemade cards, as accents for scrapbook pages, to decorate journals or to enhance any paper craft. Stamp these images on white and black cardstock then color in. These stamps are silicone based and will not turn yellow. This package contains Butterflies: a set of seventeen acrylic stamps on one 8x6 inch backing sheet. Imported.