Student's Crazy Slow-Motion Rube Goldberg Machine 

Thanks for the positive feedback. The spinning wheel was from a toy called the Cyclone Flyer that we purchased from our local Dollar Tree for $1.25. It's still listed on their website, but in-store availability may vary by location. You can see a close-up of the package in our build video (ru-vid.com/video/%D0%B2%D0%B8%D0%B4%D0%B5%D0%BE-PQm3L83lFRs.html) and some close-ups of how the feature was constructed in the video walkthrough that my son recorded (ru-vid.com/video/%D0%B2%D0%B8%D0%B4%D0%B5%D0%BE-zWxq8UDqPjo.html). Hope this helps.

Thanks for the positive feedback. We are wrapping up our next build this month and will have a new video out shortly.

LOL, I thought I recognized your account picture. My son and I have enjoyed watching your domino videos.

Thank you. We had a lot of fun building it.