UPDATE: No longer Substance only! Now includes 4 prefab variations with .png textures!
Who says you can't be cute just because you are dead? Little Skully here surely is the livin...dead proof!
For full customization you will still need to use Substance, which was supported natively in Unity 2017 but moved to a separate *free* plugin for 2018 and onward.
This lovable little bonehead comes with 4 LOD meshes with the following triangle counts: