Just something that came to mind, turned out well enough so decided to share.

Put these anywhere, use them for invasions, easter eggs, parkour platforms, or hide away safehouse at the top of the world.

End Saucer is a spartan mini base with two double chests, a crafting table, and 3 furnaces. Great for use in the nether, end, or as a stash/safe point in maps.

End Saucer 2 is a basic mini base with one double chest, a crafting table, one furnace, one anvil, one jukebox, and a bed. Caution, the bed spawns you through the half slab above it, just jump toward the edge of the saucer to get out but be careful not to fall off. Great for use in pvp and factions servers as a /home point, just make sure you put it high enough it won't be noticed but above water so you can get back down (if you don't have a elytra)