Plus one on this idea... assuming the foil is on a tissue like backing you should be able to lift it off via static charge on a brush.When I learned how to do gilding I used the long side of a badger hair brush to pick up the gold leaf. Maybe try a natural bristle brush?
Airfoil!!@carrdo - yet another thought about using a can of wind. Don't hesitate to blow the air with the Foil roll instead of against it - I know that isn't intuitive, but the air flow over the foil will create a light vacuum that could lift the Foil.