a bit off topic but it might be handy:
I have added a liberal helping of good ol' duct tape. See how long it is before this becomes a wad of gooey gunk attracting all sorts of dust and crap to the cover!! Easy to replace though.
you might want to try this tape, apparently it takes a lot longer to become a wad of gooey stuff. it's used on planes so it must be solid...
btw i have not tried it, cos it's not easy to get in europe, but if you do try it i'd be interested to know the results