Mo_GT wrote:For strips of metal try hobby shops (the kind that sell remote control cars, planes, etc), they sell shorter lenghts than the likes of bunnings where you'd have to buy a 1.8m or 2.4m length.
Another place to try is your local car audio install shop - they have these "backstraps" which are metal strips they use to hold central locking motors in place. I don't have a pic, but they generally get about 6 or 7 with an alarm kit or locking it, and have spares lying around you could get for nothing or a few bucks.
