Just got my drink holder from the website above. Although pricey, $50, it looks great.
I got the one that mounts on the flat/carpeted portion of the center console. They even custom made one out of zebrawood for me, and black plastic so it matched the console beautifully.
It's the only non-standard piece on my 300D, and it was a great add.
PS, ordered on day, received 2 days later, and it was custom made.