Fifty — one to screw in the bulb and 49 to guard him/her.
or
A snail because it carries it's home.
or
but he said "You said I could have two carry on items!"
or
Anything you like, he can't hear you.
or
The batter.
or
Can I have your hand, hand, hand, hand, hand, hand, hand, hand in marriage?
or