Getting a golden axe
To get a golden axe, you must keep your town in ''perfect'' condition for 2 weeks straight. Once these 2 weeks are finished, talk to the Wishing Well. It will give you a golden axe, which is unbreakable.
Getting a golden shovel
To get a golden shovel, bury a shovel in a ''glowing spot''. After the tree has matured, it will drop a golden shovel when you shake it.
Rewards for complete bug/fish collections...
To get a golden fishing rod: Catch one of each fish (There are 48).
To get a fish weather vane:
Catch and donate one of each fish to the museum.
To get a golden bug net:
Catch one of each bug (There are 48).
To get a butterfly emblem on your house:
Catch and donate one of each bug to the museum