Aye, Aye, Arr and the Seven C's
or
Because all his uncles were "ants"!
or
The police had to comb the area.
or
They charged one - and let the other one off.
or
Just in case he got a hole in one!
or
Fun-ny!
or
By paying them to cheer for him during campaign events.
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