I've made customs of all those guys save for the Mad Hatter and Azrael. :biggrin:
I've got Az on the back burner, though... I think you can do him with a Hand Ninja hood and Mr. Sinister's cape (maybe with some modification). Haven't figured out how to do his chest, though, but a decal may be the way to go. Anyway, I have made a face decal for him (this is modified from a picture I found on DeviantArt). Hope this gets you started:
Cool are there minimate customizers on Deviantart? I only go there for comic art.