Night Goblins, love the idea of basically murdering, psychopathic, drug fuelled psychopaths, that run around and are the size of like 6 year old children.
This also was my favourite piece of Warhammer art as a kid back in the 1990s.
Will also recommend strongly the Warhammer book Gloomspite. Awesome look at Night Goblins being completely bonkers and terrifying.