Tried removing battery from remote and seeing it works to just unlock or like my key, isnt so simple to remove battery?
There are blank shells and blanks on ebay for around $29
4 Buttons Replaceme Flip KEY Blank Case Shell FOR Holden VF Commodore | eBay
MR Minit do Holden keys, ask them how much costs to get a key cut blade only.
They will only cut their blades and costs $33 from memory for my VX.
Even it if supplied same price.
I would envision VF be the same as most Holdens where the blade key will open and unlock/lock car and work in ignition but not start.
Doing the above, will give you a key, with no internals but cut though with a shell (if you wanted a shell)