This is a case made using the Ikea LACK as a Base. I made some parts and remixed some, overall it is very easy to both print and make.
Things to buy:
50 cm x 50 cm Polystyrol panels (I had 2.6mm thickness for the side and 5mm for the front)
10 M4x8 Screws
4 M4x16 Screws
4 M4 Nuts
4 608 Bearings
10 Wood Screws you have lying around, around 4 mm thickness
A Xaiomi USB LED-Light and a USB-Cable to solder it to - then just plug it into the pi.