Here I have for you a set of 3 vintage rusty iron nails from Lancashire that were hand forged in the 1950's.
 
Rusty nails are traditionaly used for both protection and for hexing: 
place one in water to absorb negativity and enemy workings (change the water and nail each month, leave the used nail in the earth for a month).
add to water to make Mars Water (sprinkle on property boundaries to protect).
drive into and enemy's doll baby to curse/hex, add to souring jars to mess them up.
 
Considering that iron is a metal of the god and planet Mars, these would also work very well in workings where communication is an important facet - reconciliation, job interviews, etc.
 
This measures approx 4" or 10cm long and has a good weight to it.
 
Purchase is for three nails.