What has been the worst marketing gimmick the NFL has ever embraced in order to bring in new demographics to the game?

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The original was posted on /r/nfl by /u/Urbane_Cowboy on 2024-03-18 17:54:12.

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The Susan G Komen pink Octobers seem pretty transparent move in order to appeal to women, but what else has the NFL tried to do (but failed) to bring in large portions of new fans?