My 2021 pandemic project was learning to quilt, and I started out with a fussy geometrical monstrosity. Penrose tilings are aperiodic tilings (i.e. they can cover the plane infinitely without repeating) that exhibit fivefold symmetry (so no right angles anywhere). My brother nerd-sniped me by wondering what it would be like to quilt one, which launched me on a four-month long journey that I documented on twitter. Here's the first tweet in the series describing the project, and a thread comparing to previous Penrose quilts by other folks.
Our MetaFilter Quilting Bee is up and running. This blog is where we'll display our plans for each quilt, blocks as they're finished, and (eventually!) the finished quilts.