Golden Fishing Rod:
Catch one of each fish (There are 48).
Fish Weather Vane:
Catch and donate one of each fish to the museum.
Golden Net:
Catch one of each bug (There are 48).
Butterfly Emblem:
Catch and donate one of each bug to the museum.
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.
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.
Every week on a random day, one of you're town rocks will hide the entrance to Resetii's home. Hit the rocks in you're town until one cracks. Hit it again and the rock will crumble. Enter the hole to get to Resetii's house.
After Nook has closed his shop for the day, take a shovel and bang on his door multiple times. After a while, the door will open, and you will be able to purchase items at inflated prices. Nook will be in his bed robe too.