I shot all of these this afternoon. They are all about 6-8 manually focussed RAW shots stacked in Photoshop CS5. I normally use Helicon Focus, but I thought I'd try out CS5. It works well.
Here's my setup. Studio flash on the left with diffuser. Camera on tripod with electronic cable switch (keeps camera steady when adjusting lens focus). Canon flash gun on right with Gary Fong diffuser to soften light. You can also see the black reflective perspex used for the reflection shot, and the black art board against the wall used a a back-drop. The device on the camera hot-shoe is a Canon STE-2 remote trigger. This fires the Canon flash gun, and it also trips the studio flash at the same time.
C&C welcome.
This is a screen-grab of 100% and shows how well CS5 stacks the images.