What are some of the greatest marketing disasters in history?

My answer to What are some of the greatest marketing disasters in history?

Answer by Trevor Carss:

Just for fun, I thought I’d bring up two famous beverage companies for this question, Coca-Cola and Pepsi.

It is argued that the launch of New Coke in 1985 was a serious disaster for Coca-Cola.

The recent Pepsi commercial with Kendall Jenner was also a modern marketing disaster.

When the competition is fierce, companies will try to think too far outside the box to gain market share. I feel that a marketing disaster with bad press is still an opportunity to rise from the ashes, as Coca-Cola has done since then.

Nevertheless, we should commend those who try.

What are some of the greatest marketing disasters in history?