@christianp there's a hyperbolic quilt pattern, based on the hyperbolic soccerball tiling. You can glue or tape paper together to visualize spaces of negative curvature, though knitting or crocheting works much better. I designed a construction set toy originally to illustrate spaces of negative curvature.
Beach City is our private beach-side sanctuary for close friends and awesome folks. We are various flavors of trans, queer, non-binary, polyamorous, disabled, furry, etc.