A weapon that is a ball with spikes is commonly known as a "spiked mace" or "morning star." This medieval weapon typically consists of a heavy, spiked ball attached to a handle, which can be swung to deliver powerful blows. The spikes are designed to inflict more damage upon impact, making it effective in combat. Variations of this weapon exist across different cultures and historical periods.
A flail! http://en.wikipedia.org/wiki/Flail_(weapon)
The mace symbolizes a weapon that has a handle of wood and a ball with metal spikes on top.
The metal ball with spikes you are referring to is likely a medieval weapon called a morning star. Also known as a mace, it was used by knights and soldiers to crush armor and injure opponents in combat. The spikes were designed to penetrate armor and inflict damage upon impact.
There were four spikes at the end of a Stegosaurus's tail that it used as a weapon for self defense. The spikes are called thagomizers.
It is a club with a short chain and a large iron ball with spikes. It was designed to go over a shield and hit the person behind it.
mace
A Morning Star actually is a bronze or iron ball with 12-15 sharpened spikes on it. It has a wooden handle attached to the ball. So it is more of a club or in a more accurate term ... a spiked Mace. They did NOT have chains in them - that would be a Flail.
it has something like spikes or pox in an wide ball.
no actually, they do, mine was a huge ball while puffed up this morning and had spikes poking out everywhere.
This is called a jump serve.
When a player jumps up and spikes a ball down on the other side of the court
They have very sharp spikes and when there is danger they curl into a ball so only the spikes are shown and anything that tries to touch him will get spiked