My gaming computer. I was gonna buy the Fractal Design Define Nano S since my previous case was Define S, but I did not like the lack of air supply for the gpu. So after some digging around the web I decided to go for the Evol ITX instead since it almost had the same size but better cooling for the gpu. My initial plan was to use hardtubing but the fittings I bought didn't work out for me and I did not want to wait another 2 weeks, so I used what I had left from my previous build with soft tubing. Now after it's completed I'm glad I did not go with the hardtubing since the softubing was hard enough to get it to fit in this tiny case.
Update December 2016: Bought a NZXT Manta Black Windowed case and some more watercooling parts. The new build will be black, purple and green. A little joker inspiration on the colors :)