Costume ideas for a future costume party, part 2

In my search to find a great costume for an upcoming costume party, I made some progress. With the new masks that I got yesterday from Greyland Film, I have more character options due to having more faces that would look good with different costumes.

Now I have an option to go as Mr. Spock (Star Trek) if I can at least get a proper Star Trek shirt or similar to the costume. Another choice is Ironman without the helmet and the head of Tony Stark. Another option are two different medieval dresses with some extra padding and a choice of a few different female masks and wigs. I could be boring and be yet again in a superhero costume like so many years before. I could also be the nun again, but this time with a different face, the alternative option to that would be the French maid. There are other ideas, but I am not so keen on them right now.