A Drop of Water was created in 1987.
The Last Drop of Water was created on 1911-07-27.
The size of a drop of any liquid depends on how the drop is created, so it is not possible to say as a general rule that any particular amount of water is in a "drop of water." You first have to know the size of the drop of water.
Blue Drop was created in 2007.
Drop to His Death was created in 1939.
Drop the Beat was created in 2000.
Drop-In was created on 1970-09-28.
At the Drop of a Hat was created in 1957.
Price Drop was created in 2003.
After the Balls Drop was created in 2008.
Drop Off was created in 1989.
Magical Drop was created in 1995.
Demon Drop was created in 2010.