Conic shaped element with a small upper axis and a metallic tip (the most common shape is the inverted pear).
You make it dance with the help of a little rope surrounding its body, throwing it with energy to the floor while you keep catching the rope on your hand.

Artisan, Jordi Pons   Artisan, Jordi Pons   Spinning top tipical of Majorca.   Spinning top of Alguer