Bukkit

This plugin lets admins manually generate almost any structure found in the minecraft world with one command!

works on CB1.6.2-R2 (OUT DATED! might need to wait a while)

command: /gen [type] [seed] or /mg [type] [seed] or /manualgen [type] [seed]

The seed is a seed for the random number generator in java, if you don't supply a seed it will use a random one (system time is what most programs use for this).
If you use the same seed more then once it will make the same structure as last time where you stand.
ex:
/gen sh MeIsEpicSeed
and you are like, "OMG! I realy like this strong hold! I wish I could put this same one on my friends server".
all you would need to do on your friends server (or a different place in the same world) to get the same thing is:
/gen sh MeIsEpicSeed

Features:

• generate structures found in the world at any location.(ex: a NetherStrongHolds at spawn)
• you can input a seed(like a world seed) so you can generate the same thing in more than one place
• tells you how long it took to generate
• 100% InGame!

Things that you can generate:

• npc Villages (use: v, npc, village)
• StrongHolds (use: sh, stronghold)
• NetherStrongHolds (use: nsh, netherstronghold, nether)
• Dungeons (use: d, dg, dungeon)
• Mineshafts (use: ms, mine, mineshaft, m)
• JungleTemples (use: jt, jungletemple, temple)
• Pyramids (use: p, pyramid)
• DesertWell (use: w, well, desertwell, dw)
• Witch Hut (use: wh, witch, hut, witchhut)
• EnderCrystal (use: e, ender, ec, endercrystal)

Change Log:

• v1.2.1 - works on CB1.6.2-R2
• v1.2
  - added witch huts
  - works on CB1.6.1-R1
  - all generator code is up to date :)
• v1.1 - updated to work on CB1.5.2-R3!
• v1.0 - first release!