Speaking of the Admirals, I noticed it this week but I could swear they're meant to resemble the rat pack. I always thought Kizaru looked kind of like Sammy Davis Jr(I actually thought he looked like Robert Downy Jr. in Tropic Thunder at first), and that Aikanu looks like Frank Sinatra.

Once I noticed those two, I actually looked up the Rat Pack and I think Aokiji is supposed to be Dean Martin(or at least, they both have big noses).