I know faux wood finishes are all the rage in RVs, but I never really liked faux anything as a matter of principle -- it always came across as tacky, literally, as you need tac spray to stick it to the OSB or whatever the core is made of.
One idea we used in my trailer: procure some inexpensive aluminum flashing (or copper plate) and use a combination of tac spray and some pop rivets to secure that to your cabinetry.
We think it looks cool, goes GREAT with the AS aesthetic, and brightens up the whole space. Because of it's reflective sheen, it goes with anything!
You could also use some formica with contact cement if you have a steady hand and trust yourself. Formica is available in about 2 million different finishes, I think.
Also: fabric to match or compliment upholstery or that faux white leather they used in the 1990s.
Also also: they make some fancy spray paint products that mimic stone or hammered metal -- that's easy for sure.