Something you don't see come up too often, the Panzerfaust 150M...
Many think this advanced design Panzerfaust was only in the prototype stages, but they were deployed in the final weeks of the war.
Panzerfaust 150M in field
Unlike its predecessor, the 150m had a re-useable tube good for up to ten shots and there are those who believe that captured examples of this weapon served as the inspiartion for the Soviet RPG.