I used a 4x4 wheel cover. Checked that it was suitable for the tyre size.
Been on for a year now, only negative is access to tyre valve to check still inflated correctly.
It's a spare wheel , only used in emergency and most don't even bother and call AA
As long the tyre is ok , i'm ok with it.
Think you better concern yourself to more important things like : how do i get it out from under there , and the flatone back in , do i know where i find the jack/jackpoints, am i strong enough to undo the bolts , is the wheel seized ,...?
I know all the above and don't mind my hands getting dirty , in fact they don't becose i'll be wearing gloves
I bought this one on Amazon and it fits well. However I agree with all comments above and probably wouldn’t attempt to change a wheel in the rough unless on flat solid ground in a safe location. Also bear in mind the VW issue jack is made of cheese and will let you down at some point!