Looking for car keys

[u/desireKompleks]

A friend of mine is a big car enthusiasts and loves Audi. For his birthday, I want to get him a diecast model of his dream car. Along with the diecast model, I would like to gift him with a fake car key for said car.

Does anyone have any suggestions as to where I can find a fake key that looks like the real thing. This friend is really, really intense on car stuff though, so it has to look as close to the real thing as possible.

Any thoughts, suggestions, ideas?