Sorry its taken me so long to get around to this, but here is a video to answer your initial question - which was to create a NURBs sandal shape based on a Rhino 3D tutorial.
For the last question about full boots and details like folds and creases I'd suggest starting with the you tube video that nitro suggested.
This is a link to a video of the maya version of the Rhino tutorial to create a sandal using NURBs.
https://www.screencast.com/t/ZDVhZTBhZWE
Here is a hi-def version of the same tutorial...
https://www.screencast.com/t/MjI3NTc4
"If I have seen further it is by standing on the shoulders of giants." Sir Isaac Newton, 1675
Last edited by ctbram; 05-04-2010 at 02:21 AM.