Where to find candy on Animal Crossing lets go to the city?

In Animal Crossing: City Folk/Let's Go to the City, candy is a special treat that can be used, and obtained, on only certain special holidays. If you leave candy on the ground, ants might appear on it.

WenDELL

If you give WenDELL, the walrus, a piece of candy, he will give you a design. Blue and Yellow Candy will get you the "coloring boy" pattern while Red and Green get you the "coloring girl" pattern.

Festivale

Every year in your Animal Crossing town, a peacock named Pavé will visit on the last Monday of February, Festivale. On this day, a player can talk to his neighbors to play one of the following games: 'Verbal Soccer', 'Toss the Coin', 'Verbal Rock, Paper, Scissors' and 'What am I Thinking?'. If the game is won by the player, he or she will win a piece of a certain color type (red, green, yellow blue) candy. When Pavé is given three of the candy type that he had asked for previously, he will reward the player with a special furniture item from the Pavé Series. You can also save the candy for Halloween (see below)

Bunny Day (Easter)

On the 2nd Sunday of every April, or Bunny Day, Zipper T. Bunny will visit a player's town. He will be waiting for you in front of the Town Hall having previously buried and thus hidden numerous amounts of eggs. Zipper T. Bunny will ask you to find these eggs and hopefully, the winning Bunny Foil will be inside. When the Foil is given, the player will receive a furniture item from the exclusive Egg Series. If the Bunny Foil is not found in an egg, the player will get a piece of candy instead. Unfortunately, candy does not serve any other purpose on Bunny Day, but it can be eaten, sold to Nook, given to WenDELL for a pattern or kept for Halloween (see below) or Festivale (see above).

Halloween

On the 31st of October, all the animal neighbors will dress up as Jack, the czar of Halloween, and demand that the player give them candy. However, the real Jack can be found wandering around the town, and if found, can be given candy in exchange for a furniture item from the Spooky Series. Candy can be bought from Nook in October to be given to neighbors and Jack. Candy can also be received from neighbors if you visit them in their houses while wearing a costume.

You can tell who is Jack and who is a neighbor since they chase you and Jack will not.