Post any closing credits logos you think are scary, startling, and creepy.
Some I found:
This is the blood stained variant of the 2001-2003 A.K.A. Cartoon logo. It has a black and red colour scheme, with a blood stained background, high pitched trumpet 'scream' sound, and a grosteque image, you might not want to watch this at night. It appears at the end of Ed, Edd, 'n', Eddy's Boo Haw-Haw.
This is the 'blackground' variant 1998 Stretch Films Inc. logo. It is very scary because of the extremely ugly mouth and a 'blackground'. It is mostly seen on Courage the Cowardly Dog.
Credits to BeckyLT2140 and 217Dan for the videos.