Expensive original part but still shaky

About the sun visor of (cheaper) third party ("imitation") can be read in the reviews that these sit very shaky on the objective, inter alia, because there fastened with "clamping noses" (instead of a thread or bayonet). That's why I signed up for the much more expensive (24, - EUR) Original Canon decided (also "clamping noses"). A direct comparison with the sun visor from other manufacturers I have not, but this original sun visor Canon also sits very shaky (on the EF-S 85mm f / 1.8 - a different lens that would fit on this panel I have not). After all, the sun visor acts otherwise well made and is of course provided on the inside with the black "velvet".
Overall, I find 24, - EUR for a piece of plastic, which is also not even sit very well, too much. The construction with the "clamping noses" also unconvinced. Therefore only 2 stars. Lack viable alternatives (other fastening mechanism for the above objective?) I kept the sun visor. Time they look in the future (or a fall down the nose breaks ...?) Causes problems.