|One mask, many styles.|
I've always thought that a character's domino mask should be distinctive in silhouette, and many of these examples show that, like Nightwing, Green Hornet, Kyle Rayner, et cetera. I feel as though any artist wanting to work in the comic book industry should understand that not all domino masks are created equal. Too many times have I seen Nightwing and Green Lantern with masks like Green Arrow.
Sure, it's not the most identity-preserving of masks, but it's definitely one of the coolest-looking types.