I would like to couple it with a large hopper and a mechanism that does different things based on the accumulation of certain sizes of marbles in each bay. It could play notes, and/or unleash some other thing or process. So, you load up the hopper with a random assortment of marbles, but you don’t know precisely what the result is going to be! I love marble machines, but this could add an element of randomness to how one behaves.
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