Looking for spoiler suggestions...

[SickDesign]

I have a 79 Camaro that has no spoiler whatsoever. I am looking for some ideas aside from the stock Z spoiler. If anyone has done something like this or has any suggestions they would be welcome.

I can fabricate it myself, so even a concept would work if it's not a "production" spoiler.

I'm starting to get all my parts and pieces together for when I tear into it, and the spoiler makes a huge difference. There are no other spoilers on the car.
Rear:

Front: