Translation of Die Aufzeichnungen des Malte Laurids Brigge

I covered the book in mushroom spores.

The mushrooms became the translation.

Translation of Duineser Elegien

I covered the book in fat and sugar. Mould grew. 

The mould is the translation. 

Translation of Briefe an einen jungen Dichter

I shredded the book and boiled it.

Then I strained it into a pint glass and drank it.

Half an hour later I urinated into a bottle. The piss is the translation.