Poppy Crafts 12"x12" Halloween Collection Paper Pack #97. The Poppy Crafts 12 x 12 inch Paper Pack is perfect for a variety of projects including mixed media and lots more! This package contains twenty-four Halloween themed 12 x 12 inch (30cm x 30cm) sheets of double-sided cardstock in 12 designs (2 of each design). Acid and lignin-free. 160 gsm cardstock.