Welcome to the club!
Ugh, I love both my spoiler-on-spoiler (yes, really) and my rear bumper Plasti-Dip...
I would, by a narrow margin, say my favorite is the rear bumper Plasti-Dip job. It makes my XV stand out from a sea of them. Followed by the rear spoiler gurney flap that's really a spoiler-on-a-spoiler.