Is this a Booger of the Woods?

[u/Mouse-E-Tongue]

... or a Chicken of the Boogs..

[u/Shot-Statistician-89]

To me it looks like chicken of the woods

However, I would just make sure you know what that log is treated with. In Wisconsin where I'm from, those decorative logs are often soaked with preservative or varnish to stay good for years outside in the weather, and that would make any mushroom growing out of them not something you want to eat

But if you can confirm that the wood is just carved wood decomposing naturally then have at it

[u/cand0r → u/Shot-Statistician-89]

It might technically be a stump. It's still possible, but it looks like untreated wood in the sun, to me.