To use rivets you need a rivet gun. So you can either buy one of these
http://www.canadiantire.ca/en/pdp/stanley-contractor-grade-riveter-0584703p.html#.UxeeD_ldWSo and a pack of rivets like this
http://www.canadiantire.ca/en/pdp/mastercraft-steel-rivets-0584719p.html#.UxeeG_ldWSo
Alternatively if you dont want to buy that, you can use a small bolt or better something called a chicago screw.
That said, using a small bolt is not ideal, the heads extrude and can and will catch on each other once and while when your skis cross (sketchy as fuck). Speaking from experience here.
IMO rivets are best and chicago screws are pretty legit as well.