See Liberator shapes for example or the ergonomically based Lovebumpers.
Consolidated B-24 Liberator | Liberator | The Impossible Shapes | Pull Shapes | Liberator shapes | Liberator (OMD album) | Liberator (Blake's 7) | How the States Got Their Shapes | ''How the States Got their Shapes'' | Glossary of shapes with metaphorical names | FP-45 Liberator | Consolidated Liberator I | Arnott's Shapes |