I got a shell for my Turbo Everdrive.
I found them at the
assembler games forum. The user BuffaloWing made a 3D printed one and listed it for sale using a company called shapeways.
I attached it to the TE using a very small amount of clear caulk and it's rock solid!
The micro SD slot, region switch and reset switch all work perfectly
Pro: it's awesome
Con: it's expensive, at about $20. Also I got dinged with $13 in duty charges on top of that!
My wife is going to make me a sticker which I'll use as a label for the top of it.
edit: pictures on how to adhere it to the TE can be seen
here. His is a little different as mine has posts which go into the screw holes. His doesn't, so mine probably fits a little better.