Money Rock
Money Tree
Glowing Spot
Each town has one glowing spot of ground per day. Apply the shovel directly to this patch to produce a bag of 1,000 bells or rarely 10,000 bells. Re-burying the bag in the same hole produces a sapling that may grow into a tree that gives three bags of money once, but this is risky because the glowing spot often shows up in infertile cells. If the glowing spot is on fertile ground, burying another shovel there should produce a tree containing a golden shovel, which has a chance of finding a bag of 100 bells whenever the player digs in empty ground.
Fruit
There are 6 different kinds of fruit in the world of Animal Crossing. Your town will start out with a random fruit. The fruit you can get are: an apple, a pear, an orange, a peach and a cherry.
When you try to sell your designated town fruit to Tom Nook, he will give you 100 bells for each piece. If you get fruit from another town he'll buy it for 500 bells.
The coconut, when you go to the animal island, you can get coconuts off the trees. You can only plant them near the beach. Tom Nook will buy them for 500 bells a pop.