I was reading a book about creating your own wooden puzzles at home when I came across this old 1900s puzzle known as Instant Insanity
. It basically has four dice, each side with one of four colors (there are doubles on some of the sides). The goal is to stack them vertically so each face in a vertical line has a different face showing. Think Sudoku with dice faces.
I decided what would be more fun than to put my favorite puzzle professor on it. It's the type of puzzle you'd see in the game and thought it a good fit.
I'll post another picture once I attach these onto the cubes themselves.