Yes! If you have the right tools, you can follow this video and make your own stereo cabinet. Even if you don't have all of the right tools, assuming you know someone who does, you can easily give them a six-pack or twenty bucks to cut the holes you need or install the hardware and build a cabinet that fits your space.  But remember, most of the time, these projects end up costing just as much, if not more, than you would have spent buying one online. It's just up to you to determine if that's worth it or not to have something unique.