I’ve just begun to see and identify slime molds in the field. Most of the fruiting bodies are not anywhere this large and need a hand lens to be seen. This one is also called dog vomit slime mold because when the plasmodium breaks down it gets brown and goopy. Ugh. But they’re really interesting organisms - animals that reproduce with spores like mosses, ferns and mushrooms.
Here is a link to some I found in my yard last year -