I'm specifically looking for something very much like this:

It's the project box that I used for my
You Don't Know Jack controllers (which I'm redoing, hence my asking

), and it's also the box that Twisty Grip used for their stand-alone spinner box back in the day.
Radio Shack doesn't carry it anymore, and Parts Express - while they have a bunch of "project boxes" doesn't have one that angles like this. So does anyone have any idea where to get such a beast?