Keep a Marble in Motion for 2 Minutes - Ideas & Your Thoughts

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To keep a marble in motion for two minutes with only a single initial touch, one suggestion is to use a bucket that allows the marble to spin along the walls. Another idea involves a teeter-totter mechanism with a long plastic tube where the marble is placed inside, and alternating pulls on the ends keep it moving. A pendulum-like setup could also be considered, utilizing gravity and momentum. The challenge is to design a system that maintains motion without further manual intervention after the initial push. Creative engineering solutions are essential for achieving continuous motion.
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How can I keep a marble in motion for 2 minutes?

I've had 2 suggestions so far:

*A simple way would be to put a marble in a bucket and move the bucket so the marble spins along the walls.

*Another idea is to have a teeter-totter, using a long plastic tube. Have a string attached to each side. Put he marble in one one of the tube and pull the other one down. Then alternate pulling an end down to keep the marble moving. Have and caps on the tube so the marble can't escape.

But, if i can only touch it once and that's to start if off. how can i do that way?

Your thoughts?
 
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