Proper vent cover for a Fan-tastic fan?

[Larrygmoody]

Hi,

My new to me Scenic Cruiser has three vents and they all need covers. I saw an amazon comment that a standard cover won't fit the "Fan-tastic" fan (like one of mine).

Can anyone recommend a good cover for this fan?

F-Fans does make one for this fan, but I don't like the looks of it. Is there any other option?

Thanks!