Suggestions

Map options

Unburying fossils (on top of where they were in the ground)
Watering flowers
Map tile editing
Train station locker placement

Villager options

Boxing/Unboxing
Reset to default settings
Change villager

Player options

Deleting players
Player TCP image
Change tan
Change hair style
Change hair color
Change eye color
Change face
Pocket, dresser, and island box editing
Change room items/orientation
Train station locker placement

Other

Individual PWP unlocking