Whether you want to make a custom party hat, or you need a cone shape for another project you are working on, paper is the perfect choice for a material. Paper is easily shaped into a cone, and can be securely held with regular clear tape or glue. If you want to make a cone out of paper for your project, you will need to know how to shape the paper to make a cone and even out the open end so that it is flat across.
Pull one corner of your sheet of paper down towards the centre of the paper and roll it inward so that the paper makes the shape of a cone. It will likely have extra paper sticking out around the open end, but the bottom will be a cone.
Tape the cone in place along the side, where the paper overlaps, with clear tape. Alternatively, peel back the edge of the paper slightly and apply a bead of white glue to hold it in place.
Cut any excess paper that it sticking out from the open end of the cone with your scissors.
If making a party hat, staple a length of thin elastic on either side.