From Nookipedia, the Animal Crossing wiki
Jingle (ジングル, Jinguru, Jingle) is a reindeer in the Animal Crossing series. He appears once a year on Toy Day, a made-up event in Animal Crossing in place of Christmas Eve. He delivers presents, thought to be on behalf of Santa Claus, but he is never seen handing over any presents to other villagers. He is the only way to obtain items from the Jingle series in Doubutsu no Mori, Doubutsu no Mori+, Animal Crossing, Doubutsu no Mori e+ and Animal Crossing: City Folk. But in Animal Crossing: New Leaf, he will give the player a Festive wreath, since Jingle furniture, Jingle flooring and Jingle wallpaper can be obtained at Timmy and Tommy's store from December 1st to December 23rd.
Like other special holiday related characters, Jingle only appears in Doubutsu no Mori, Doubutsu no Mori+, Animal Crossing, Doubutsu no Mori e+, Animal Crossing: City Folk, and Animal Crossing: New Leaf. This is because no real-life holiday events appeared in Animal Crossing: Wild World such as Toy Day or Halloween. Jack and Franklin are two other special characters who did not make an appearance in Animal Crossing: Wild World.
Doubutsu no Mori e+ and earlier
In Doubutsu no Mori, Doubutsu no Mori+, Animal Crossing and Doubutsu no Mori e+ Jingle can be found wandering around town starting at 8 PM on December 24th, on an unnamed event in which doesn't appear in the Diarys' calendar. He needs to be approached three times to receive an item of his series, also asking questions to determine what item the player receives such as flooring, wallpaper and furniture all from the Jingle Series. He only gives out one present per villager, but there is a way to receive more.
To receive more presents from Jingle, players must change their shirt each time they receive a new item of clothing. They must change their shirt away from Jingle so he does not see them. He will assume they are a different character. However, doing this for long enough makes him realize they are the same character, though he simply laughs and does not ask for the furniture back.
In Animal Crossing: City Folk, Jingle can be found wandering around town starting at 8 PM on Toy Day (December 24th) to Midnight. During this time, he may also be found inside other villagers' houses, but only in the ones with their lights off (meaning they are outside). This is the only time in the game the player can visit a villager's house without the animal having to be inside. In one of the homes, Jingle will be inside dropping off presents. Upon talking to him, he will offer players a present, either one they can "lean on" or one they can "walk on", with further options of "huge things". These simply mean wallpaper "(lean on)", carpet "(walk on)" and furniture "(huge things)", specifically furniture from the Jingle Series. As in Animal Crossing, he will give only one present per person, but there is a way to obtain more furniture, as mentioned below:
To receive more presents from Jingle, players need to change only their face accessory (hats, helmets and flowers also work) instead of a shirt to obtain more items of the Jingle Series. But, Jingle will hand out duplicate items, so this will have to be repeated many times before the full set is obtained. Jingle's memory is not infinite, he will only remember the last 8 disguises, after that the player can receive new presents by wearing ones they wore earlier in the night.
In Animal Crossing: New Leaf, Jingle can be found wandering around town starting at 6 PM on Toy Day (December 24th). Throughout December 1st to December 24th, the Able Sisters and Kicks sell Santa clothes and accessories. To get a gift from Jingle, players must dress as him and give presents to the residents.
While Timmy and Tommy's store will sell one piece of Jingle series furniture or festive furniture per day from December 1st to December 23rd.
If players are wearing a full set of Santa clothes, they can help him deliver presents to the residents. Before Toy Day, the villagers might randomly tell them what they want for Toy Day. This can be furniture, fruit, a shirt, or wallpaper.
When players finish, they receive a Festive wreath. If seven out of eight presents are delivered correctly, the player receives Jingle's picture by mail the next day.
All the furniture is red, white, and green, resembling Jingle's attire. The Jingle Shirt is not a part of the exchange in City Folk, but can be bought from the Able Sisters. It is like any other shirt, so once it is available it won't appear again for a while. Buying a Festive hat, Jingle shirt and the King's beard will complete a Santa Claus look.
Animal Crossing e-Reader card
Happy Home Designer amiibo card
Jingle makes an appearance as a trophy.
Names in other languages