Hey guys I found this awesome vanilla furniture mod!. You can use this anywhere!. even on a realms server which does not allow mods of any kind!.
all you need is a command block and a button
to get the command block just have cheats enabled and then type: /give [your name] minecraft:command_block.
then place it down and slap the button on it! now go to the link then copy the super long command and paste in to your command block. then push the button and a structure generates and then you'll be given a verity of spawn eggs. then spawn them on the ground and BOOM you got yourself furniture in vanilla minecraft! There is two parts of the commands the first has simple stuff then the next has extra stuff. I personally recommend getting both.