When the Toa Inika became toa, they were different in a few ways. The Red Star made them special, and apparently also made their masks rubber instead of metal. I had my thoughts on what their masks would normally look like, had they been made toa in a more conventional way, perhaps with Toa Stones. As part of my modular "Build-a-Toa" project, I came across these masks and redesigned them to better fit how I believe they would look on regular toa.
The Kanohi Calix
The Kanohi Elda (you may notice it doesn't have a mustache)
The Kanohi Sanok (I'm particularly proud of this one)
The Kanohi Kadin (less punk rocky, but there's no way I could remove those spikes, they're too cool)
The Kanohi Iden (surprisingly, not too different from the original)
These are all drafts, obviously (which is why the Suletu is missing, still figuring that one out), but I encourage constructive criticism!