Cliff Chiang has posted some of his artwork that he put together as a DC Comics/anime mashup about a decade ago. He does anime versions of Batman and Robin, Harley Quinn and The Joker, Superman, and the Justice League. Cliff sez:
And I know it’s pastiche, and I know it’s thinly veiled versions of G-Force, Gigantor, and so on (Chiang mentions as much and says it would need to be reworked before it could get published for real). But I can’t help but dig this stuff. How can you not want a series called Science Ninja Hero Batman? Those four words on their own are cool enough, but slap them together? Bring it!