makey makey case

makey makey circuit board case.

***UPDATES***
1) It appears there are now a couple Makey Makey Board layouts out there.
> Substrate file has USB plug location on the inboard side of arrow keys. (Original kickstarter board)
> Case_R2 file has USB plug location on the outboard side of arrow keys. (Updated board layout)

2) Please note, I do not have a newer board, so I can't say if the layout will work out. I'm relying on your feedback.

3) Fasteners used. M3 x 10mm socket head cap screws.