I've finished up my Bankers Box conversion! I found some beige plastic switch plate covers that are the same color of the boxes/patterns. I only paid 67 cents at our local Do It Center!!
I used Loctite Super Glue Gel Control and just glued them right on! They are 4" up from the bottom and 5 1/2" in from each side. Just write on the covers with a dry-erase marker and erase when needed!
Here is the final product!