If I send a villager some wallpaper or carpet in the mail, is there any chance they'll change their wallpaper or carpet with what I gave them, or is that a static part of their homes?
I really wish this was possible! I have Chadder in one of my games and it drives me crazy that he doesn't have the cheese wall and floor in his house. Maybe the developers thought it was a bit too obvious, but I think it'd be a huge upgrade.