I'm not keen on badging as a Ferrari as it's not a Ferrari, hence changing the V5 to California. (I Know, I Know it's not a California either).
Anyway, one of the first parts that I bought was a genuine California glove box badge from the current California. I was going to mount it in the boot but it was too small, then I was going to mount it on the bonnet bulge just behind the opening but have finally settled on using it as a Grill badge.
Mounted on an alloy plate painted black, so Ferrari badged but not Ferrari badged if you use Irish logic!
grill badge by
jaguartvr, on Flickr