A modern update to an age-old puzzle that’s exclusive to Art of Play. This elegant brass-finished key is our take on the classic disentanglement challenge commonly referred to as the “buttonhole” puzzle. Sam Loyd popularized this topological wonder as an advertising premium in the late 1800s, and since then, multitudes of stick and string arrangements have dangled from garments across the globe. We decided to save your shirt from stretching by using a clothing-optional method we first learned from Tim Rowett.