(You need 2 shovels to unlock the golden shovel)

Unlockable:	How to unlock:
Golden Shovel	Find a glowing spot on the ground and dig up the thousand bells but don't fill the hole back in instead bury the other shovel in the ground and a tree will start to grow. Shake the tree when its an adult and a golden shovel will fall out.
Money Tree	Do the same thing as the shovel only bury the money you dig up.