Adam and Jamie explore the possibility of raising a ship with ping-pong balls, originally conceived in the 1949 Donald Duck story The Sunken Yacht by Carl Barks.
The Myth - Ping-pong balls can be used to raise a sunken ship.
Verdict - Plausible
Notes - Even though it took an impractically large number of (27,000), when enough of them were piped into the Mythtanic II, the boat rose to the surface. However, it took far fewer balls than they expected (60,000). In addition, this technique is of dubious legality—if containment of the ping-pong balls were to fail, the 'rescuer' would quite probably run afoul of environmental-protection laws.