David survived a lockdown while travelling and tells the tale. Random diversion to 3D-printed mice.Maastricht Formation - Wikipedia (https://en.wikipedia.org/wiki/Maastricht_Formation)Maastrichtian - Wikipedia (https://en.wikipedia.org/wiki/Maastrichtian)Ploopy. Open-source hardware. (https://ploopy.co/)Another method for finishing a Ploopy shell! ASA filament with acetone chemical smoothing. (https://www.reddit.com/r/ploopy/comments/soxqrg/another_method_for_finishing_a_ploopy_shell_asa/)Flevoland - Wikipedia (https://en.wikipedia.org/wiki/Flevoland)Friesland - Wikipedia (https://en.wikipedia.org/wiki/Friesland)Is the L Train Running? (https://isthelrunning.com/)Is the G Train Running? (https://isthetrainrunning.nyc/g/)Les Halles (Paris Métro) - Wikipedia (https://en.wikipedia.org/wiki/Les_Halles_(Paris_M%C3%A9tro))