Super Precise Gyroscope

$250 from Amazon >

Made from solid brass and aluminum, the Super Precision Gyroscope is both the epic tinkerer's and workplace thumb-twiddler's essential toy. It runs on miniature stainless steel bearings that propel its movement continuously, and nearly silently, for up to 7 minutes. With its included motor and battery pack the Super Precision Gyroscope attains speeds of 12,000 revolutions per minute. Wow. That's pretty fast. One time I tried to pedal the bike in my spin class to 130 rpms and I vomited.