Electronic Sharon, you attatch them to a pass holder (can buy locally if you dont have one), this clips onto your jacket, and that pulls out the pass to slip into the reader at the gate of the lift or drag whatever. (similar to most resorts nowadays).
Oh no! I will have to pack them - when my hubby went to Italy last year, all they had to do was to put them into an inside pocket or a pocket on your sleeve and walk past a sensor - no elastic involved.