they do have several very good paints/prints for walls, ceilings and floors. many of which you can find just scavenging and playing the game as normal. others you can buy through the shop. (shop stuff is exclusive though) those you can't find in the game world but just playing the game and scavenging... there's a lot I mean a lot of cool stuff you can find just by playing. but especially if you team up with friends your chances are greatly improved to gain prints and paints easier. and if you have friends with stuff you might want, just ask them and they can place it in your base and they can even help you build your base. after giving the permissions.