This mod allows you to replace furnitures with another of the same type, it still needs further development, because there's furniture types missing, but so far, it works (at least with vanilla furnitures). You can see the mod in use here: You can download the mod here or on the Mod Browser...
forums.terraria.org
Don't want to do it if it's already been done
Mind pinging me with a link in a few hours?