Oh very cool!
That's probably what I'm gonna do with mine then, I like how (as far as I can tell) you don't have to cut a slot for the SD card, you can just have it self contained in the shell so on the outside you can't even tell the carts been carved at all. Much more excited that I can use an real cart shell without having to butcher the outside appearance. Mine came in about 2-3 weeks ago, but it's a birthday present from my brother and sister, so I don't get it until the 30th... so this 4 day wait is killing me. but at least I can start working on the cart shell now as I wait.