As a young child I always thought the umbilical cord of the baby was attached to the mother's belly button from the inside. and the mom's belly button doubled as a peek hole for the baby.. kids heh...
A childhood belief about belly buttons

others believed things like this
- i used to believe that when you pushed your belly button a baby would pop out im now 14 and know the truth — kelsey
- I used to think that if i touched my belly button it would unfold and my belly would be inside out forever. Anon
- I used to think that babies were made when you press your mums belly button.
Then a baby would fall out— Chris Hyndman - I used to think that my belly button was where I was once shot and that the navel was a healed up bullet hole— Tony
- I used to believe that belly button lint came from the *inside*. Why else would it always be the same color?Anon
- when i was a child i used to think that my belly button was for storing smarties— GemSue