Rather cheap if possible, and I'm not working with much space on my computer desk. I have a height restriction. To describe my desk, it has the main portion where my monitor rests, to the right there is a raised platform where my second monitor sits, and I currently keep the one HD I have there (I'm ordering a second), and underneath that raised platform is where my computer case rests. There is enough room for me to stack the HDs with a little extra space, and was curious if I could use something like the pink erasers (one on each corner, the oblong ones) at each corner of the bottom HD to rest the new one on top. Ghetto, I know. But I can't seem to find any other type of rack that I could fit them both onto while also remaining in that space below the platform my second monitor sits. Any ideas would be greatly appreciated, as you can tell my idea probably isn't the best lol