>>12106988I think the best alternative would be to choose one of your classmates, but going with a well-known and generally liked girl would be nice too.
Greta would certainly have a huge shock factor (as huge as your reproductive organ ;) ). If you think everyone in your class would recognize her, Katie Bouman would also be fantastic. Take into consideration the possibility of doing it with Lisa Randall, of course.
You could also go with one of your department's female professors.