Pampers toy box

With a 9-month old in the house, we go through diapers like nobody's business.  I hate to throw the boxes out because they are a great size, sturdy and why not recycle, so I came up with this idea then put my mother to work.

I asked my mother to sew a cover for the box and this is what she came up with.  All I asked her was to make it removable just in case I needed to wash it.  Thomas has claimed this as his toy box and I spend a good part of the day putting the blocks back in just so he can turn it over and dump them back out.  

I would like to figure out how to add a lid and use them to store DVD's and allow them to be stack-able.  I will let you know what I come up with.