A vintage library card for "Exploring the Moon" by Roy A. Gallant is densely layered with handwritten checkout dates and names spanning decades, creating a palimpsest of borrowing history in blue, green, yellow, and cream tones. The overlapping stamps, signatures, and date markings build a tactile record of how many hands have held this book, transforming administrative documentation into an intimate portrait of shared intellectual curiosity. 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.