Greetings!
So you are in the middle of some mind blowing 3D environment that you are building to show your uber skillZorz and you think to yourself...
"Holy sweet chocolate Fudge! I cannot go on in my meager existence if I don't have one of Darth's bottles in here! But how did he do them!?"
Allow me to save you the shame of admitting to owning Superman under-roos and show ya how I did these...
Bottles In AOI (freakin' cool echo here)
*Disclaimer: Spelling mistakes, horrid grammar and an out right abuse of the ... is a figment of your imagination. You should rid yourself of all guilt and continue to worship Darth.*OK Step One: Open AOI (assuming you have it on your system of course)
Now, up there on the menu, find Scene and select "One scene" Like this:

I also use the grid also on the Scene menu.. don't believe me? Well here ya go:

Mmmmkay.. If you haven't fallen asleep yet, you should go to the left there and choose that path like tool thingy (see disclaimer above)

And now, we shall build our path. This can be simple and painless.. believe me, I have only sustained minor injuries in the past while doing this. I blame Jeff Foxworthy.

Mmmmkay so now you have half of a bottle. Good Job! Wewt! You RawxZorz! *ahem* Clickie on one of them fancy tools at the very top... no.. yer not gonna use it but it tells AOI that you IZ done making the path. I dunno why it works so don't ask. Next, To the Tools Menu!

Then select "ok" and nope, no need to fiddle with those values.. I never do so why would you want to? o.O

Yipppie!!! Ya done did it!!! *Does that dance that Kermit the Frog does on the Muppets* You should see something like this:

Now, if you read this tut and do not render your bottle and post it here so I and others can see it.. well, I will come to your house and *thinks* steal all the fridge magnets and mess yer socks drawer... oh yeah I am so bad that way.
Rippers will not die, but they will be strapped to a chair and forced to watch several hours of Teletubbies in Japanese.