Each full size cone (3 scoops of dough) makes two hats. You will need 5 full size cones for 10 hats.
Each small cone (2 scoops of dough) makes one brim. You will need 10.
Make sure to handle the hats from the base. If picking up the hat from the cone, the brim may fall off.
If ordering specialty colored candy, 7 ounces of each color will be plenty.
These are best fresh, but the cones and brims may be made 1 or 2 days ahead and kept in Ziploc bags or an airtight container.