One less-than-harmonious aspect of the yoga world’s famously body-blind inclusiveness: Burly, six-foot-tall practitioners are handed the same 68-by-24-inch sliver of mat to pretzel atop as a 95-pound vegan. Brooklynite Keri Cavanaugh’s general store Owl & Thistle, however, caters to devotees of all sizes with custom-cut mats ($15 to $25 at 720 Franklin Ave., nr. Park Pl., Crown Heights; 347-469-0432), including mini versions for kids and extra-long rollouts for yogis whose downward dog could use another foot or two. And the sticky PVC-and-latex-blend material comes in two thicknesses—1/8 inch and a spongier 1/4 inch.