I love the idea of blue goblins. Why didn't I come up with it?
Because Cricky Hitchcock invented them first, way back in White Dwarf #12 and then later republished in 1981's Fiend Folio. Mind you, he called them Xvarts for some reason, but they were just blue goblins and we all knew it.
Classic flavor:
Modern insanity:
This has been your Obscure Roleplaying History Moment for the day.