I have never been into Skulls. Almost did not trade my 09 Silver CVO RG for the skunk due to the skulls. I loved the Eagle on the 09!
After I got the Skunk I planned on removing the skulls, but they grew on me before they got removed. So I added a skull to the rear of the Chopped tour pack, and to the primary cover and to the timer cover.
The same thing happened to me, to a small extent. The longer I have the skull horn cover, the more I'm okay with it.

Especially after making some mods on the motor. A skull just seemed kinda silly on the mild mannered stock bike, but now that it really barks and has 118 hp, it's starting to feel more... appropriate. I think the biggest issue is that the horn cover just doesn't go with the Hot Citrus Orange SG, and I will change it eventually, if I ever find something that really turns my crank. I'll try to post a pic.