Rendering for a "product configurator" web page

Instead of looking for help with the specific issues I’ve been having trying to do this so far…given Rhino, Brazil, Neon, how should I go about making images (to be combined as PNGs with transparency with some HTML) for one of those ‘product configurators’ where you can swap out colours?

If I understand your need there’s Badger that can help making batch rendering.