Jack-O-Lantern and Jack-in-the-Box and Juvenile Court and Jury Duty and Judges and Jail and Judgment Day
jail time jack-o-lantern
Something scary that starts with C is cancer.
Jaguar is one.
Jaffa :-)
Jumper, and there are some kind of riding pants called like jodphurs or something.
Jurassic Park
Jackal, jaguar and jellyfish are scary. They begin with the letter J.
Jackal, jaguar, jellyfish and jungles are scary. They begin with the letter J.
jaws
wind,water
Juice.
Narcotics, needles and northern rubber boa are scary things. They begin with the letter N.
jail time jack-o-lantern
jersey
javelin
Jacket!
Juniper berries / jasmine.