Some, but not many people younger than I will recall one of the greatest cartoons ever created in the history of animation.
This great cartoon is simply known as La Linea (The Line). It is an Italian cartoon drawn of a continuous line in which the main character is a part of. He would occasionally ask the artist, Osvaldo Cavandoli (1/1/1920 - 4/3/2007), to help him through simple obstacles (usually a broken line which he couldn't walk across) by drawing for him with his white pencil.
LA LINEA (1969)
The cartoon idea itself is quite simple, but the art, which seems simple enough, is actually very well done. There is very rarely a moment when you may have a little trouble telling what is being drawn. And with everything being a silhouette, you can imagine this isn't always a simple task.
Those of you in the United States may remember this poor unfortunate fellow playing on The Great Space Coaster when Roy would take out his little magic viewer and show various short skits.
What in the hell does Mr. Linea say? He really doesn't say anything, as his language is simply Italian gibberish. Every so often he would say a short word or phrase in Italian, but must of it was just gibberish. This made it very successful in every country that it premiered in.
You can find many of the [around] 150 episodes on YouTube [I believe the first episode is 101]. They're really cute and worth the look. Boy did they bring back some memories when I watched them again after 20 years.