Spongebob.gif
From Screamer Wiki
Spongebob
Spongebob is a prank that shows a picture of Spongebob Squarepants (from the episode "Dumped") with creepy eyes and no mouth. However, after about 60 seconds, he will blink. Regardless of what version you see, there will always be no sound.
Link
NOTE: The following picture contains a screamer
scaryforkids.com/pics/spongebob.gif