Do It Yourself Round Flat Clear Christmas Ornaments. These DIY Christmas ornaments make fun stocking stuffers! Decorate these ornaments inside or out for a creative holiday decoration all your own. Fun for any age, these DIY crafts are just as fun to decorate as they are to hang on your Christmas tree or in your home. We recommend using crayons, colored pencils, washable markers, permanent markers or acrylic paint, sold separately online. Plastic. (1 dozen per unit) 2" diam. Plastic.