Flood lights!
or
It takes two to tangle!
or
None. There never was any light bulb.
Notes: Probably the only really good light bulb joke of 1984.
or
Billllyuns and billllyuns. Light bulbs are part of the interstellar "goo" that pervades our universe; they are star stuff.
or
I'm going out tonight!
or
The players dribble a lot.
or
Shamboo!
Frankenstein: Witch can you make me a lemonade?
Witch: Poof you are a lemonade!
or