Our gray cottage would look even more natural if it had a few stone accents. Unfortunately, we're not masons; nor can we afford to hire masons! The cheapest way for us to add a touch of stone was to build a small dry stacked wall in front of our entry.
We've been gathering local rocks whenever we can find them free. We still need enough for another two layers, so the wall becomes visible from the street. After that, I'll plant white annuals behind the wall for impact.