thanks for all the nice replies, I really appreciate them
I just made my button out of some plexi I had laying around, then frosted it. I now longer have the diffuser around it either, it's just one big button (and it looks awesome when it's on)
I used a metal brush attachment for my dremel to do the majority of the work for the fins, then went back and sanded everything down even with low grit sandpaper, and increased the grit until it was all smooth. later, I went back and used glazing/spot putty to fill any scratches I made.
thanks again folks!