![](http://zapatopi.net/afdb/afdb1.gif)
1 Get a five foot sheet of aluminum foil (standard one foot wide Reynolds Wrap brand will do nicely.)
![](http://zapatopi.net/afdb/afdb2.gif)
2 Fold the sheet four times into five equal segments so that you end up with a 1x1 foot square, making sure that you fold over the dull side of the foil leaving the square shiny on both sides.
![](http://zapatopi.net/afdb/afdb3.gif)
3 Use scissors to cut from one corner of the square to the center, making a straight line.
![](http://zapatopi.net/afdb/afdb4.gif)
4 Bend the foil from one side of the cut under the other, making a slight cone. Again, make sure that the outside of the cone has a shiny side of the foil; this is VERY important.
![](http://zapatopi.net/afdb/afdb5.gif)
5 Place the cone on your head and squash the top and sides to make it fit snugly.
![](http://zapatopi.net/afdb/afdb6.gif)
6 Apply Scotch tape liberally making sure to secure the cut in the foil and any form-fitting creases made in step 5.
![](http://zapatopi.net/afdb/afdb7.gif)
7 Use more tape to secure AFDB to your cranium.
Courtesy of
http://zapatopi.net/afdb.html