Among the hundreds of hacks from the fantastic website IKEA Hackers, one is particularly interesting.
How to build a rack with an IKEA lack table worth less than 10 euros?
Well, with this manual:
The best of the LackRack (after its price) is that its construction is modular and you can grow it with your needs: The LackRack is the ultimate, low-cost, high shininess solution for your modular datacenter-in-the-living-room. It is said that Google engineers were the first to explore the idea of using lack tables for data centers. The LackRack is so famous that even has its own website: http://lackrack.org/ 😀