Gallium (periodic symbol: Ga) is a bit of a fun metal in that it has a melting point of around 29 degrees Celsius. This means it will melt in your hand as a result of your body heat…
On a side note, ‘Galinstan’ or Gallium-Indium-Stannum(Tin) alloys have a freezing point at -19 C meaning they are liquid at room temperature. They are therefore a sort of safe alternative to mercury in that you can play with them and they won’t give you mercury poisoning.