A lot of times I get boxes to alter for classes, but its actually quite fun and not too hard to make boxes from scratch on your own.
Here's one we made in class last month. It's made from 7gypsies book covers (6X6") which are great for box building 'cos the chipboard is nice and sturdy.
Through the magic of Beacons glue and some washi tape for hinges, you get a box that flips open like this:
And a little book to keep inside it.
It feels quite good to be able to make a box on your own (as opposed to buying a pre-made one and altering it). So maybe everyone will get boxes for Christmas this year eh?