This is a 4x4x4 cube. Normally making 4x4x4 cube puzzles require too much cut and wood. If you make a 4x4x4 cube from individual cubes, you must cut 64 cubes. Aditionally they became big. My design aim was desiging a cube possible to make from ready stocks on the market, easy to make with less cut and possible to make small The result is this puzzle. This puzzle has eight pieces.
For making this puzzle you can use ready wooden stocks available from hardware or craft stores. You will need two kind of stock.
a x a and a x 2a dimensions
For metric stocks 10×10 and 10×20 or 15×15 and 15×30 (better for playing) is a good choice. For inch stocks I guess you can find ½ x ½ inch and ½ x 1 inch, or you can cut all pieces from an ax2a stock. With two setup of your saw you can cut all pieces
a x 2a x3a you will need 8 pieces
a x a x 2a you will need 8 pieces
After you can glue pieces according to pieces drawing.
With this puzzle pieces you can make additionally 34 different shape. If you like make your own puzzle and see other possible shapes, you can download from here free PDF file (0.25 MB on secure server box.com) including other possible shapes and craft tips.
DIY Puzzles 
Just recently created one, although was planing to do so for more than a year :D. Has guests that like it so much, I gave them as a present. Now I have to make another for myslef.