I was searching YouTube for woodworking instructions and found this. I thought this was just about the best place to post this...

http://www.youtube.com/user/stevinmarin#p/u/31/fEATei2wewY

He also makes a mirror box; not to keen on the exposure element there, but I guess it's the way things are going these days with YouTube, etc.

Bri

I wonder what kind of wood it was, it looked like pine.

I thought it might be sugar pine.

It's called a "tooth and nail" puzzle. It was on an episode of 'The Woodwright's Shop,' where basswood was used. I figure just about any soft wood would work, depending on how much boiling/drying time is needed. I still have a copy of instructions I saved off the Woodwright site.
Along with the mirror box, he makes a crude dancing cane. I think both of these were included with several other DIY tricks in a magazine a year or so ago. I can't remember which magazine, but I think plans for a drawer box where also included.