Cosmo Kramer thought up numerous ideas over the course of 9 seasons on ‘Seinfeld.’ Some which came to fruition and others which never made it off the drawing board. But his mind never stopped working – probably because he never had to work (other than his short stint at H&H Bagels). For the purpose of this article, I have chosen 5 of his very best inventions.

5. Ketchup & Mustard in the Same Bottle

We’re off to a solid start. This is something I would definitely purchase if I saw it on the shelves. It’d be a hit at summer barbecues for sure.

4. The Bro

Also known as the mansierre to Frank Constanza. Most likely provide psychological damage to George when he walked in on his father modeling one.

3. Oil Tanker Bladder

Glad to see Kramer is looking out for the well being of the environment.

2. Make Your Own Pizza

I’d try this.

1. The Coffee Table Book About Coffee Tables

It got Kramer an appearance on Regis and Kathy Lee where he showed off his wacky side to the country.

Honorable Mention: The Cologne That Smells like the Beach

And Then There Was Kramer’s Worst Idea…

Hey, he can’t knock every idea out of the park. This one is a total flop.

Let me know what you think of this list. Which ideas of Kramer’s are your favorite?