Sub options with images

Apologies if this is covered elsewhere but I've looked around the forum and extensions and can't seem to find what I need.

I'm looking for an extension that lets me create options with sub options (sometimes referred to as chained options, dependent options) with images rather than just text or drop-downs.

Basically we have a standard product which is available with different types of covering and each of those coverings has sub options so for example when you buy the product you select to have it covered in fabric or leather and depending on which of these options you choose it would then show a choice of fabrics or leathers and then once you chose the style of fabric or leather it shows you the colours to choose from.

The options won't affect the price but as they are fabrics/leathers in different patterns and colours it's important we can show them as images so the customer can see the exact style and shade of colour for that covering. I've seen a few dependent option mods but none seem to be able to use images as the option.

Does anyone have any suggestions if this is available anywhere?

Thanks.

Steve