Had one in my garden as well last month! Here we call them “Witch’s butter” [0]. It was there for some days and seemed to move a bit over those days but then cr

Had one in my garden as well last month! Here we call them “Witch’s butter” [0]. It was there for some days and seemed to move a bit over those days but then crumbled indeed. [0] https://nl.m.wikipedia.org/wiki/Heksenboter https://nl.m.wikipedia.org/wiki/Heksenboter