Only 1 command block was used to make real furniture in non modded vanilla minecraft. So cool! Edit: I have a feeling this is the start of "Comm-packs" no mods just command blocks making things similar to mods. Lol.
I have seen vanilla servers accomplish amazing feats with command blocks / plugins, its almost on a modded level
as have I there are servers that use plugins to basically recode the game, custom armor textures names ect. different effects enchanting via items and more
Im currently playing on a server that has Infernal mobs that drop epic encanted item and other items that give simalar enchant the TiCon has, like mine 3x3 or regen...lol. Its insane