Alright, I've got one. Does anyone remember the guy who used to wear the trenchcoat and dark glasses? He's sneak up to someone, and they'd scream, and he'd say 'shhhh' amd they'd repeat what they'd said quietly, and then the guy would open his jacket and say "Would you like to buy an O?"

And the guy who couldn't say some nouns, he'd make the sound?

ding"It'll cost you just a nickel"dong