Sing along if you wish!

I have a tale to sing to you of Merry Weather Myrrh
a single song that ten lines long
it (probably) won't even hurt your ears.
He was called the Duke of Donkeyskins, the Prince of Pigeontoes and sometimes King Cornhusk.
His castle was made of chickenwire.
The roof a copper pot.
He adorned his clothes with doghair, spiderwebs and feather ruffs.
His saber was of pigweed, and his crown of juniper.
Mice would often fray his ragtag boots, giving them holes for his toes.
An elf you might suspect, and in that you are correct.