Theydo exist! These Doc Marten style boots are proof! The black boots have a green all over alien head print and lace-up fronts.

30.69 Oz. Made of Nylon-canvas.
New style with black PU out sole and black rear pull-loop.
Lace-up floral combat boot featuring ribbed midsole.
Breathable foamed insole, anti-heat, anti-moisture, anti-corrosion.
Mesh fabric and foamed lining, wearing soft and comfortable.
Contrast single-welt stitching.