black craft foam string scissors wire duct tape ribbon trim material such as feathers or faux fur embellishments such as plastic spiders, buttons, or bows

When you have finished tracing the curved line for your cone bottom, use your scissors to cut along this line. When you are done, you should have a triangular piece of craft foam with a circular bottom. You can also use an Exacto knife to get more precise edges as you cut out your craft foam, but it is not necessary. [3] X Research source

Make sure that there is a little space between the end of the wire and the edge of the cone when you tape it down. Otherwise, the wire may poke through the top of the hat or poke you in the head when you are wearing it. Trim off any excess duct tape after you have secured the wire to the cone. There should not be any duct tape going over the edge of the craft foam.

Then, fold over the other edge of the cone and press the duct tape in place to secure the edges. Make sure that the wire and the duct tape are on the inside of the cone when you secure the edges.

After you have measured the brim, cut along the edges of the circle you have traced. Try to cut along the line as evenly as possible because any jagged edges will show.

You can also lay a couple of heavy books on the craft foam and leave them on for a few hours or overnight to flatten out the brim piece.

Keep in mind that the inner circle will need to be large enough to fit over your head, but not larger than your head or it may be too loose.

Make sure that your glue gun is completely heated before you begin gluing ribbon to the cone. [13] X Research source Hold the glue gun close to the foam as you apply the hot glue. Otherwise, the glue may dry partially before you have secured the ribbon to the cone. [14] X Research source

Make sure that the cone is centered over the hat brim as you secure it with hot glue. If you want to embellish your hat, you can also apply some feathers or faux fur to the area where the cone meets the brim. Just use your hot glue gun to secure your embellishments to the base of the cone. [16] X Research source

Try bending the cone in two or three places to give it a worn look.

Apply any embellishments to your witch’s hat with a dab of hot glue.