Homemade Science with Bruce Yeany | Soda Bottle Tumbling Toy // demonstration and construction tips @YeanyScience | Uploaded July 2020 | Updated October 2024, 1 week ago.
Here are the steps to construction of the bobble tumbling toy shown in a previous video. Tumbling toys have been around for quite a while, commercial ones are nice but are limited in as an instructional piece due to the ball being encased inside a wooden capsule and little to due in the way of experimentation. This simple version can be produced using some recycled materials found around the home. The clear plastic of the bottle allows for visibility of the movement inside, plus the the simple design allows for some changes to the materials used inside.

Additional Gravity powered toys:
soda bottle tumbling toy explanation youtu.be/47WJbJ-8KQM
Toy Physics, tumbling toys part one. youtu.be/CfCqWEdos2A
toy physics tumbling toys. part two.
youtu.be/OBb1zclTVlg
Cardboard ramp walkers. youtu.be/kx-1RuBoSqs
Ramp walking pizza box. youtu.be/DirKEBJplDc
Physics of marble tracks review youtu.be/JWtsOiVxIIE
Toy Physics ramp walkers. youtu.be/aBq6VArNyQY
Big high low track. youtu.be/88NZStgiIt0
High low road track youtu.be/_GJujClGYJQ
Sand pendulums. youtu.be/uPbzhxYTioM
Rolling objects investigation. youtu.be/-RK77vppFgQ
Angle or repose. youtu.be/7UM5R-oMBHc
Looping pendulum. youtu.be/SXQ9VaYm3yQ

Additional suggested video on tumbling toy
Douglas. Stith video on Tumbling Toys variations explained youtube.com/watch?v=xgMQJ2dCThc
and Tumbling toy variations
youtube.com/watch?v=K58TNfb8JyM