Kitchen splash back

This might not be what you're looking for but I've seen people make 'splash backs' using micro/mosaic tiles which come on sheets and are easy to cut to fit.

This type of look but they come in a variety of colours.  Not too sure how big the sheets are.

I made a small splash back with perspex purchased on line and secured it with double sided clear tape.

You might be able to find a supplier who will make a large one, with hole, if you supply a template and/or measurements .

Have a search on Google.

Formica and impact adhesive. Easy to shape, thin and lightweight.

This was the picture I was searching for originally to show the effect of cutting sheets of these micro mosaic tiles.  I think they look really smart.

I did a fire surround with that type of thing back in the 70's. Fairly heavy and not suited to a caravan, I would think, unless it's a new lightweight type.