These types of magnets also have a lot of commercial applications.  Here are some of them listed on wikipedia:

Common applications of rare-earth magnets include:

• computer hard drives

• wind turbine generators

• fishing reel brakes

• permanent magnet motors in cordless tools

• industrial uses such as maintaining product purity, equipment protection, and quality control

We hope you like the video.  And remember don’t try experiments like this without the supervision of a professional.