I just LOVE this song. I've only heard Oscar Brand do it, and he sings a different last 2 verses:

They found him in the mornin'
A poor, sad, frozen ghost
And they set him up in a stable
As a horse's hitching post.

Some day some hot horse will thaw him,
And back to me he'll come
And I'll sit and I'll proudly watch him
Stirring coffee with his thumb!