In case you do not get enough of the cube-puzzles: here is "The Monster Cube" - the largest cube puzzle on thingiverse - a 10 x 10 x 10 cube made of the 166 different hexacube-parts (thus 166x6 makes only 996 - so you will need part 167: a simple 2x2x1 cube to fill the monster completly).
Have a great (and long) puzzle-time! Don't worry, there are millions of solutions :-)
Use the scad-file (excuse the ugly style) to scale the parts as you like. Included stl-files have a cube size of 10x10x10mm - so the whole cube will be 100x100x100mm.
I will post a guide to the shown solution soon (I will have to take pictures when assembling the cube the next time).
You do not have a 3D-printer? You want to buy this puzzle? Drop a short message (email@example.com) and I will quote you the price including shipping (and also available PLA-colors).