but I couldn't find any.
or
......... one jar.
or
Three:
One to write the light bulb removal program,
one to write the light bulb insertion program, and
one to act as a light bulb administrator to make sure nobody else tries to change the light bulb at the same time.
or
They turn from notating nuclear spins to notating unclear puns.
or
The guardians of the galaxy!
or
They both have trunks
or