We will need a knife, a pumpkin, and a candlestick.
We can get the pumpkins in some vegetable stores like, for example, Ankrahmun with npc Jezzara or Edron with npc Bonifacius (follow images below)
The knife and the candlestick can be found in utensil stores.
Now we will use the knife on the pumpkin
Now use the pumpkin on the candlestick to get bright
Now you can make scary decorations like this!
Hope you guys enjoyed!