Go to Challenges -> Play Game -> Shape It Up!
In this mini game you will need to match your body to the shapes on screen before the timer runs out. Occasionally you will also need to cradle rock a piglet. Every successful three shapes matched and every successful cradle rock will give you extra time.
You will need 30,000 for this. After 44 shapes and 7 piglets I had well over 100,000 so this one is quite easy.