Just in case he got a hole in one!
or
Because he has such yuuuuge fans!
or
Buy a deck of cards.
or
The question is irrelevant, since you couldn't find the dolls even if you knew how many. (Note: Well, this was a good joke in 1983-84. . . .)
or
One. But for the message of light to continue, send in your donation today.
or