- Lava balloon (Wikipedia)
A lava balloon is a gas-filled bubble of lava that floats on the sea surface. It can be up to several metres in size. When it emerges from the sea, it is usually hot and often steaming. After floating for some time it fills with water and sinks again.
- Dodgeball is a team sport in which players on two opposing teams try to throw balls and hit opponents while avoiding being hit themselves. The objective of each team is to eliminate all members of the opposing team by hitting them with thrown balls, catching a ball thrown by an opponent, or inducing an opponent to commit a violation, such as stepping outside the court.