Travelling large distances on a holiday can be boring? Just borrow a coat hanger from the hotel and fold yourself a camera mount to hang from your rear view mirror. You'll have hours of fun, especially in fast corners and roundabouts.
A coat hanger and a set of pliers is all you need.
Step 1: Cutting and Folding
Cut the coat hanger.
Bend the edges downward at right angles.
Estimate the thickness of the camera and bend the edges inward.
Account for the lens sticking out.
Cut off the remaining parts (if necessary).