Here is a 4*4*4 Maze Puzzle. Print them all and put the floors of the maze on one other according to their markings and in the orientation such that the the floor markings 1,2 and 3 are vertically above the G floor marking and the top most lid has hole diagonally opposite to the G floor marking. Don't forget to print it using only transparent or semi-transparent filaments. Throw the ball in the hole of the G floor and you are good to go. Get the ball out from the topmost hole after criss crossing various obstacles and paths. Have fun.