A technical patent drawing renders an American football in cross-section and plan view against a dark charcoal ground, with fine white lines detailing its internal structure, seams, and geometric proportions. The composition pairs the oval profile with a circular top-down view, accompanied by handwritten annotations and an official patent stamp that anchors the piece in early 20th-century industrial documentation. Built from double-wall stainless steel and made to order, holding 20 ounces with a snap-on lid, a standard-cup-holder fit, and wraparound artwork. Your commute carrying original art instead of another branded tumbler.