How about porting the Venus symbol to men, and the Mars symbol to women. It seems weird to gender lock these, seeing as how female martians have been around since pulp sci-fi was invented.
Back in university my Hmong friend wrote a pronunciation guide for non-Hmong speakers that went, "If it's spelled in Hmong, you're pronouncing it wrong."
This would allow you wear one pair of sunglasses normally, and another pair on top of your head. You could then make a second costume where the only difference is that you switched the glasses around. I fully support your idea.