I used to be afraid of Horror Movie Box Art. Now, I can watch most of those movies and laugh, but back then... The horror section was hell on Earth to me.
I used to also be afraid of 1st Person Shooters. Now they give me headaches.
I also used to be afraid of Alfred E. Neuman's face on MAD Magazine, and inside was just as bad.
if I had a fear of anything rational, and still do have a fear of, it's that little dinosaur in Jurassic Park.
You know, the one who eats Wayne Knight and sprays Acid in his face.
That Rocking Car and him screaming just scared me forever. I still haven't finished the movie.
Oh, and to some point, The Gracie Films Logo:
http://www.youtube.com/watch?v=1aDtC6gsRpg
Still kind of bothers me to this day.
Oh, and Rocky Horror Picture Show. Saw the singing Lips on TV once upon a time on Comedy Central and it just scared me.