It waves.
or
Two — one to screw it most of the way in and the other to give it a surprise twist at the end.
or
One minds the train, one trains the mind.
or
Make sure one is a match!
or
. The phone went green green, and I pinked it up and said yellow.
or
Billllyuns and billllyuns. Light bulbs are part of the interstellar "goo" that pervades our universe; they are star stuff.
or
he said "Not you again".
or