For your sexy domino mask, I recommend a product called Friendly Plastic. It's available at craft stores or online, and it's a hard plastic, like they make toys out of, that becomes as malleable as Silly Putty at a relatively low temperature. Thus, you can make it into a sheet big enough to carve a mask out of, then actually mold it onto your own face. It's hot, about like putting a steaming towel on your face prior to a shave--uncomfortable but tolerable. Once you've got a hard piece of plastic in the exact shape of your face, you can cut it down to the mask dimensions you want with a small, sharp blade.
It's how I did my Nightwing mask, once upon a time.