4-KICK-'Post and Hole' Cube Puzzle

This material presents my intended, first Kickstarter Project.

It is a wood cube puzzle that my daughter calls 'Reilly's Cube' (Originally 'Post & Hole Cube Puzzle').

There are 6 photos showing the puzzle in various states of reveal and the last image is a document with the patterns of the 8 cubes and an isometric showing a solution.