Just talk to animal and just refuse giving them candy, the question for thus is call bad
reward,

Unlock: pumkin helm- refuse once
Clothers(able sisters)- refuse second time.
Items: Anying items with turn into jask in box, or turn into jack'o lanturn by bad
reward.[it Wouldn't change your golden items, also one of the items sell for 1'000 bell I
think]

When I play it i don't get the suit, i dont tink u need it anyhow

just as pyromasterom egaz said you can can get some money off of it.

you can get halloween outfits if you go to the city and go into gracie graices where there
is a wiches hat and dress you can buy!

Yeah I saw a withches hat today in gracie grace,I hadnt played it in ages so I hadnt
checked gracie grace but I saw lots of clothes sold out too.

You can talk to your neighbours on Halloween and refuse to give them candy and they get
angry and give you a pumpkin helmet ive got like 6 i dont know what do do with them Tom
Nook wont sell them but if you get another item you want to sell NO NOT THE PUMKIN HAT! a
piece of clothing or furniture the he will take it
keep on playing Animal crossing
from
?????

Basically all you have to do is go on to 30th of october and visit the city, go to
graciegracie and buy the witch hat and witch shirt,you'll have to bring 20,000 bells
cause' it costs...ALOT!!!!Then put it on then change the date to 31 of october and get
some candy then run about town lookin' for Jack czar of Halloween.Every one will follow
you if you go to close [run away from them]but jack wont click on him and give him candy
then he will give you a spooky furniture you can sell it for 12,000 bells or you can keep
it to get a higer HRA score!!!!!!!!
HOPE THIS HELPS YOU !!!!!!!![Sorry i do waffle on abit!!!]

The only items you can get is witches hat and dress. or you could refuse giving candy.
Hope this helps (You can get the hat and dress at Gracie Grace in the city.)