You are vague with your language, if you are looking for a (working) ignition key (complete with transponder) then a number of companies will do this for a fee. Cutting the physical profile of the key is easy so long as the correct prfile blank key is used. Timpson's have house rules which prevents them cutting anything on a foreign blank - they are obliged to use their blanks, there is the transponder cloning. Interesting they appear rather lax about requiring proof of ownership of vehicle, V5 Fiat Security code. For cost see national web site.
I just fitted a remote locking system to my daughter/s central locking by key 2001 Punto Mk 2. The new remotes came with flick out blade blanks. I had to go to a local one-man-band keycutter. He was reluctant to copy the original ignition key - but interestingly technically he knew he could do it, it was just that he normally guarantees his keys will work - but in this instance he could not make that case, So, amazingly he was willing to cut the keys so long as I did not expect a guarantee - for free! Long story short both new key work fine. I must go back to him and let him know and force him to accept a fee. I run a Volvo the same thing applies but you will be lucky indeed to get Timpson's or anyone else to cut keys or clone transponders for less than big bucks and they will need all keys present to match them to the car - I believe the same is true with Fiat.
