What are the different reasons Scout and Dill have for where babies come from? please help ASAP

Dill suggests that they have a baby together, and even though he knows how babies are made, he makes up a long dreamy story about a magic island where babies are collected like flowers.

There was a man... who had a boat that rowed across to a foggy island where all these babies were: you could order one-

Scout counters that,

"That's a lie. Aunty said God drops 'em down the chimney."