Bugs



In the Episode Bugs, the boys face a Native American curse stating that every 40 years, all the bugs in the town would attack the white men.
Episode: Bugs

Witches Canyon

In the book witches canyon there is a Curse ton the town that causes all the ghosts of the dead to return every forty years and kill the townsfolk.
Book: Witches Canyon


Cursed items

Rabbit's foot



In the episode Bad day at black rock, Sam and Dean come into the possession of a Rabbits foot. Unfortunately it is a cursed item. When you touch it, it gives you good luck. But if you lose it, you get so much bad luck that you eventually die.
Episode: Bad day at Black Rock

Hand of Glory



This hand belonged to a murderous sailor. he was hung and his hand removed to make a magical item. unfortunately the sailor would return and kill people by drowning them. Bela sold the hand to the highest bidder.
Episode: Red Sky at Morning

Ruby's knife

Ghost truck



Episode: Route 666


Symbols

The summoning sigils and the Devil's traps.(pics to come)

Summoning for Azazel
from In my time of dying.



Devils Trap from Key of Solomon. It can trap any low-life demon.