Didn't cross my mind, but it's not a bad idea. I'm just going to hit the bolts with some tux black touch up paint so they're not as noticeable.
Edit:
Actually, on a second look, that probably wouldn't work. The base plate is welded on so you would need to have a hole big enough for the whole plate to fit and or split out the side to make it work. Nope. I'll keep it on top! ;-)