Wheel cap without logo (have another one with logo glued on top, but requires lots of work to be usable, flat-top is much simpler IMO).
Outer diameter 56mm, height up to "holding circle" 12.3mm. Fits Honda Prelude 15" wheels, Volvo S70 17" 5-spoke rims and few others i know.
I can also upload solidworks model if you want to customize it, on request.
Printed in ABS, holds well, not rattling, but can be removed easy too when needed. If you want it to be almost permanent - print at 101% scale (maybe more, depends on material/shrinkage) and it will be impossible to remove without breaking.