Well, I once had a tribe where I went through and renamed everyone in my tribe after Mexican foods. It was fun trying to come up with 45 distinctly mexican foods that matched gender. I would name all the females with foods that ended in "a" such as Flauta, Fajita, and Enchilada.

I would name the males with foods that ended in "O" like menudo, Burrito, and Taco. This was fun until I was running out of foods. Even when I was at a restaurant I would look through the menu and see things I missed. I would go through and find something and think "'Chimichanga'... now why didn't I think of that?"
Now that I am writing this out, this seems a bit weird but then again, that's me. Besides, no one knew what I was doing. It was all in my head, like those voices... "Shhhh.... stop talking. I am trying to type right now" J/K (Just Kidding)