The following puzzle is easy to make by yourself. Although there is one unique solution for this puzzle, this is not hard to find, because this puzzle has only four pieces. The example below is made of two different types of wood. The puzzle becomes more difficult if you use just one type of wood, because it is less clear at which position the pieces are placed.

For making this puzzle you need sixteen sticks of 2x2x8 units. In the example above you need eight sticks of a light color and eight of a darker color. glue the sticks together to four groups of four sticks according to the diagram below. Then you have four different pieces.

If you watch closely to the upper figure and compare the colors of the cube to the colors of the different pieces it is not hard to find out where the pieces must be placed. To construct the puzzle you must make two pairs of two pieces which can be shuffle into each other to form a cube.