Ok, so this might not be for everyone, but they work a treat in my studio:
They cost about 3Euros. You can customize them by drilling a hole for cables and adding some rubber feet to them. You can fit cables underneath them. And if you like to have stuff stacked you could add them on top and underneath these bad boys:
Which is like 5 Euros.
Not as glossy looking and custom-made as the expensive stuff, but works well for me at least, and cheap as chips.
