It moves!
This scrambled egg slime I saw yesterday, a slime mold, can actually move. Fortunately, it moves very slowly. I checked again today and it had moved about 3mm (1/8") to the left, so no need to start running immediately.
In Scandinavian folklore it is thought of as the vomit of troll cats. In Dutch, it is called "heksenboter", which translates as "witches' butter".
Olympus Stylus 1s, 42mm, ISO400, f4, 1/125
oh, nice. It looks like yellow moss or fungi