I have pictures from the other post, maybe on TMP? They did some using masking tape to make the openings smaller and more 'window' like. We get the 'milk crates' here from office stores since companies started using them for storage of files. Often, now, they've got 'lips' for file hangers.
I've even got some with interlocking pegs; good for making a wall of game cubes for sales at small game cons.
Doug