Not entirely sure what you're asking for exactly. but i can tell you what would look good and unique.
Build an mdf frame (sides; and bottom if you want) carpet it to match your interior. Then get a piece of plexi and put it on top. run a few small fans pushing air on one side (usually one per amp works/just have them blowing over heat sinks) and then other fans pulling air out on the other side.
To make it unique, have something stenciled into the plexi (such as brand names, slogan, etc)
I would elevate the amps off the floor just enough to run some LED's or neons under them. This way the light will glow around them without the actual tube being seen and looking cheezy.
I do this kind of conceptual work, so if you have any questions, feel free to ask via pm. GL.