Anyway, I have access to Mac and PC, but just a heads up. I cannot use iFuntastic to do this, as it messes up the wallpaper and icons and is generally not compatible with what I have done so far.
The only thing I could come up with is making fake, iconless apps to make the spaces, but I doubt that would work.
I've been using rSBT for quite some time, but couldn't figure out how to get the blank icons. I guess the folder idea was the right one. I'll try it out.