The traditional gargoyle is a horrendous creature who leers out of medieval church walls. But people have continued making gargoyles right up into the modern day, bringing science fictional flourishes to these fantasy creations.
'when he caught the whip thong over his head on the straight out of Lambton, he and Healy were grinning like devils.' Idiom: to grin like a devil - an open-mouth teeth-showing grin. This pic - Paisley Abbey gargoyle - Wikipedia