Buckyballs and Zen Magnets make nearly identical magnetic toys. Zen Magnets started a campaign where they sold both sets on eBay and asked customers to compare. Buckyballs CEO responded with a legal threat, and Zen Magnets posted a video on YouTube responding to their threat, showing how to compare the quality of both the toys. Buckyballs sent a DMCA takedown notice (a completely frivolous one) to YouTube and YouTube removed the video. Zen Magnets sent a counter take-down notice, but the video still hasn't come back up.
But no need to fear. Buckyballs is quickly going to be educated on the Streisand Effect. Here is a mirrored video:
Also, here is an mp4 for download.