**EDITED**
After receiving feedback on the prongs breaking and difficulty printing on the face, I have added V2 (pictured in white PETG). This includes a less intricate face and added more material to the prongs. I also printed version 2 with .12mm layer height and seams alot more robust.
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After breaking numerous automotive trim clips whilst working on my car, I have designed an 8mm trim clip as a replacement.
Save time and money at an auto parts store and print as many as you like, as they a generally a one-use item in the first place.
I printed in PETG, but i believe ASA, or ABS may be the better choice of material in this application.
Measurements as follows (approx.):