Create the 5 rainbows and reawaken the Harvest Goddess to access a New Game+ option. In New Game + you'll play as your child but retain all your possessions.
Submitted by Turtle Power
Create the 5 rainbows, reawaken the Harvest Goddess and make the Journey Rucksack and present it to your child to access a New Game+.
You will play as your child on a new (but identical) island, and you'll keep all your money and Makers.
Submitted by OHHHHHH YEAH!