We had a need to prank a coworker with the "best prank ever", and we decided the best way to do it was to wait for an occasion when she and her boyfriend were out of the house for the day, and then turn their house into Gnomeland, New Hampshire's Premiere Gnome Destination. This involved installing approximately 500 gnomes in an around her house, including hiding gnomes in all sorts of places across the property. And we put up a giant "Gnomeland" banner. And replaced the photos in her house with pictures of gnomes traveling to tourist landmarks like the Hollywood sign and the Golden Gate Bridge. [more inside]
Make fake iPhone and iPad apps to rickroll your friends (or worse...). More information about the project in this blog post.
You provide the linkbait, I provide the shame. I designed this site as an easy way for people to participate in April Fools' Day, without having to do much work on their own. It works best if you have a Facebook account, but you could use it via Twitter, your site/blog... basically anywhere you can share a link online. [more inside]