Creating a puzzle cube is a fun and interesting project, and the result will be fun for all ages
First, you should create ideas for you pieces. the way i did this was with 27 small block that made my cube, and took them apart without gluing them together.
then make multivew drawings of the pieces to make sure you remember them.
Once you have done that, then you can glue the pieces to gether to make the pieces.
Now you have a creative, DIY puzzle cube.