The MOFIR PS4 Cooling Stand is an easy and inexpensive way to not only cool your PS4, but also add quite a bit of convenience in a small footprint. It is constructed completely of plastic but built well for its price. A standard or slim PS4 can sit vertically in the stand atop two cooling fans that are powered by a single USB cable that plugs into your PS4. This plug also powers three USB ports on the fornt of the stand and two controller charging docks to the side of the PS4. The ports and controllers can only charge at a maximum rate of 500mA though so they will not be as fast as some other chargers.
Overall the MOFIR provides a lot of bang for the buck and I have no problem recommending it.
If you are interested in purchasing this stand it can be found here.