Wave machines used to be a whole lot more popular a couple of decades ago. They are much rarer now but you can still find various models on eBay. The Ocean Motion 12-Inch Desktop Wave Machine is a rare model we picked up on eBay a few weeks back. It has a compact base that rocks the vessel back and both.
More gadgets like this: here
Ocean Motion 12-Inch Desktop Wave Simulator 🌊 Gadgetify
The base can run on battery. You can also power it with a 1.5V adapter. Ours came in a good shape but these vessels do lose water after a while. This one doesn’t seem to be refillable.
[HT]
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