Syag Lchochma- excellent advice, just to add on to it- nowadays you can often print a model with an online 3D printing service. If you have an actual model it might be easier to sell the idea to a mass manufacturer.
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Syag Lchochma- excellent advice, just to add on to it- nowadays you can often print a model with an online 3D printing service. If you have an actual model it might be easier to sell the idea to a mass manufacturer.