This flower is made by punching scallop circles on text weight paper (like copy paper), poking a hole in the center and putting a brad through the hole. Layers are then "scrunched up" to create this carnation-like flower. In this specific card, a dotted background stamp was stamped onto apricot paper with brown ink before the circles were punched out. Simple and very effective. Not something that can be mailed in a normal envelope, but great for cards you are giving personally and would make a great package decoration.
