Fun kids toy, or sculpture? Or.....both? Designed by Maria Montessori and manufactured by Nienhuis, Montessori Excercise cubes help kids develop an ability to order, sort and mimic a two-dimensional pattern with three dimensional blocks. These blocks are printed in three colors on each side, and kids create the correct patterns by matching the blocks to accompanying cards. Who knew educational toys could be so beautiful? While pricey, at $275.00, Montessori cubes are beautiful enough to leave out on a side table at the end of the day, making it a little easier to blend toys in with your apartment decor.