Heck yeah. I do this too. I honestly like the slightly nerdy frankenstein look.
sticker pocket
Can you recommend a sticker pocket? I looked, and I'm not sure which ones might be suitable for holding a hard drive to a laptop.
What I've always done is: a clear acrylic ~$15 shell for the MacBook. Which is something I do anyway. And then I velcro-tape the drive to that shell.