Here’s a case I designed for the Raspberry Pi B+ - inspired by kawaii and domo! Two parts snap together and are secured together with m2.5 screws (#4 works too) Raspberry Pi B+ Face Case by adafruit - Thingiverse
Just what I was looking for! I’ve a friend visiting that’s bringing his Pi with him. He hates the default case and this’ll convince him to use it more often 
Excellent design, brilliant simplicity. Love them teeth!