If you pay a mere $5, you can have the Toymaker 3000 create a personalized Gravitron for you. A Gravitron is basically a gyrosope - it comes with a zipline to get it going, and a little stand to set it on after it starts. Someone unfamiliar with gyroscope will be amazed that it doesn't fall off.
The Toymaker 3000 shows and explains every step in the assembly line process, from the raw pieces to the personalized laser engraving to the finished, packaged product. The whole thing is just fascinating, and well worth your $5.