I'd use "shavings" if I had to come up with a word for them. I can honestly say I've never thought about it before. I imagine I would probably have said (as a child, when I actually used erasers) "There are bits of rubber all over the page!"
We always called them "rubbers", never "erasers" when I was a kid.
Remember - if you don't use correct capitalisation, punctuation and spacing, anything you write will be incorrect.
Remember - if you don't use correct capitalisation, punctuation and spacing, anything you write will be incorrect.