Door knockers were created as a simple functional element to be placed on the entrance door to allow visitors to announce themselves. Over time they have transformed into real decorative objects to embellish the entrance of buildings. Not everyone knows that they were also thought to have the magical ability to ward off evil spells. Precisely for this reason they began to take on frightening shapes such as angry faces or aggressive animals (especially lions).
Today the doors have retained their charm and cannot be replaced by simple electric doorbells. Every self-respecting entrance door has a properly made door.
If you are looking for a rustic and original effect, you could keep alive the tradition of wrought iron doors , true works of art created with the techniques of the past. None of your guests will be able to help but notice such a refined detail.