The Jagdpanzer 38(t) (Sd.Kfz. 138/2), after World War II known as Hetzer, was a German tank destroyer of the Second World War based on a modified pre-war Czechoslovakian Panzer 38(t) chassis. Photo taken at Warsaw, 1944.

Hetzer

Battle of the Bulge steel wheeled Panther, I believe this may be a LSSAH 2nd Company vehicle.

Steel wheeled Panther Ausf. A or G

...not by planting a tree on the vehicle but e.g. by wrapping a carpet on the barrel or covering it with all kinds of furniture and other bulky waste. Sorry, minor quality photo from the Battle of Aachen (suburb of Würselen, Neuhauser Straße), but it matched the conversation of the recent Hetzer pic.