Here are a few pictures of a Hawaiian Puzzle Pen. Laser cut by Ken Nelsen at Kallenshaan woods. I am working on a rotary tool for my laser so that I will be able to do this type of cutting. The pen is made of 10 Hawaiian woods. The box is inlayed wood puzzle pieces.
The pens, even though cut perfect, are not easy to assemble. Many of the pieces need to be inserted from the inside. Somewhat difficult to do without breaking up the pieces you already have in place.