From Fanpop, here's the Top 10 Creepiest Fast Food Mascot. For example,
#3: Old-School Ronald McDonald
The only thing more horrific than the current McDonald's clown is the old-school original. Who designed this monstrosity? It looks like someone strapped a food tray atop his head and attached a dixie cup to his nose and called it a day (here's the original tv spot with weatherman Willard Scott). This thing is hideous. If I saw this on the street, I'd run for help.
Need more evidence? Even after they revamped the look of the old-school Ronald, he was still damned freaky. Just watch this commercial.