Thinkgeek always did a bunch. But they faded away after being acquired by game stop.
The really popular April fools jokes actually got turned into products.
https://www.polygon.com/platform/am...18-pranks-thinkgeek-mermaid-snuggie-star-wars
Here is one that happened back in '78 (before there was an 'online' thing). A lot of people absolutely fell for it.
http://hoaxes.org/af_database/permalink/the_sydney_iceberg
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