Given how simple it is, i'm surprise how few custom placeable models we've actually seen over the years.
So, i've written up a little guide on how I do it, so that anyone who wants to try it but doesn't know how can give it a try!
DOWNLOAD
If you have any questions related to this tutorial, you can post them in this thread: http://lucasforums.com/showthread.php?t=211390
~Marius