A patron needed replacement panel clips for the interior door panel of his Jaguar (I've forgotten the model, sorry), and they are no longer in production, so I volunteered to try out my new CAD skills by modeling and printing it for him. Pictured are all 4 iterations the part went through until I reached…well, the best I could do.

So far, they've worked!

Printed solid in PETG for a little more strength and heat resistance. No supports should be needed if printed with the head on the bed.