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Trex.swf
TRex.swf
T.Rex.swf is a Screamer made by the very same people behind Pumba.swf, that is, kebabfrites.com. When clicked, the URL displays a picture of a Tyrannosaurus rex with its mouth fully open and displaying its large, sharp teeth while accompanied by a distorted, mechanical animal roar. The page refreshes every four seconds.
Link
NOTE: The following website contains a screamer.