2130x2797pxmotorcycle skull helmet, cartoon piston drawing, protective football headgear, skull decal art, biker skull emblem, racing helmet design, automotive skull symbol
800x800pxPiston Skull decal, monochrome engine symbol, adhesive human skull logo, black and white automotive design, industrial skeleton art, mechanical death icon, crossbones engine sticker
600x600pxmotorcycle engine tattoo, realistic piston engine decal, fictional character transport logo, heart tattoo ideas, mechanical skull art, automotive engine design, industrial art illustration
