Metal Casting (for jewelry)

I'm still working on the peacock costume, so I'll finish up with that a little later.
In the meantime, I've been working on making jewelry by casting metals (Silver or Shibuichi). I video taped the actual casting portion of the process and posted it on youtube.
I'll try and post some photos of the mold-making process (at a later point) as well.  Apologies for the reverse order, but obviously the casting process is a lot cooler than the mold-making process.
So here are the videos of the casting.  This was done at UCSD's Craft Center.

Part One: http://www.youtube.com/watch?v=Qt1kSuVTX-I

Part Two: http://www.youtube.com/watch?v=uP1YyY2lEHE

Part Three: http://www.youtube.com/watch?v=pysVwPEUqw4

Part Four: http://www.youtube.com/watch?v=dso42HJIGE8