A psd with the texture is available so you can create your own signpost. Send me a DM and I can send it to you.
In Holland we call these Paddestoelen (mushrooms). We use them as signposts on biking routes. You will find them all over Holland.
The mesh is low poly (25 polygons) and has PBR textures.
It's free and use it as you like. A like or message is very appreciated.