Photocopy a tax disc. I.e if the vehicle with the original plate has tax so it will seem this car has.
I don't think it will make cloning any easier whatsoever. Any suspicion and they check VIN numbers anyway or at least the last three in my experience.
I think the problem here is this........
At this present time, if your stopped by police for a regular stop the most common thing they do is walk to your windscreen and check your tax disc, in all honesty a photocopied one will be spotted a mile off.
As I am thinking is with the tax discs going and it all being based on a "database" In essence I could do the following.... (Not that I would)
* Look for a reflex silver mk4 golf, Not that hard to find one.
* Find one about the same age I.E reg.
* Try and make sure the owner looks to be a professional I.E not likely to NOT be legal and a guy to match me.
* Go to ebay and order his/her number plate.
* Put them on my car.
By doing this, I would never have to ever Tax my car, MOT my car or insure my car all I would have to do is fuel it and hope the owner never spots my car and think "hang on that's my reg" and hope I never get pulled by the police which in all fairness in the 5 years I have been driving I haven't yet been pulled nor given any reason to be pulled.
At least with the paper tax disc in my screen atm they are unique.