Thanks all, Yes that doesn't surprise me. I would want to keep options open to selling calender etc. I think might be safest to get suits made in a generic 'superhero' style. Wonder how different they need to be?
You want to not use the
logo anywhere, and change the colors. That should be enough.
Like this one, clearly based on Superman, but different enough that DC won't care enough to sue:
http://www.unomaha.edu/wwwmath/POW/superhero.gif