Burn, baby, burn

Giant Robots
Circle I Limbo

Real Life Klingons
Circle II Whirling in a Dark & Stormy Wind

Goth Wannabes
Circle III Mud, Rain, Cold, Hail & Snow

Politicians
Circle IV Rolling Weights

Militant Vegans
Circle V Stuck in Mud, Mangled

River Styx

People who park in disabled spaces
Circle VI Buried for Eternity

River Phlegyas

Homophobes
Circle VII Burning Sands

Those who Kill in the Name of Religion
Circle VIII Immersed in Excrement

Internet Quizzes
Circle IX Frozen in Ice

Design your own hell

Yeah, that seemed to work out pretty well.