Menorahs come in all shapes and sizes.
The only requirement is that the flames are separated enough so that they 
will not look too big and resemble a pagan bonfire.

– Ancient menorahs were made of clay. They consisted of small, pearl shaped vessels, 
each with its own wick, which were arranged side-by-side.
– Today's menorah, which stands on a base from which the branches sprout, resembles the holy Temple's menorah and started to appear towards the end of the Middle Ages.