The Nazis also had "Getto coins" that apparently were used in the Jewish ghettos they interned Jews in, before the concentration camps.

From one e-bay listing, explained:

 Quote:
Germany / Poland / Ghetto Litzmannstadt 10 marks-1943
Grade: SS-vz, small patches
Germany / Poland / Lodz. Ghetto Litzmannstadt.
10 mark aluminium 1943.
3.43 g


By Regulation/Decree (on the 8.Juli 1940) was the Reichsmark, though
the ghetto within the boundaries of the former German Empire was abolished as official means of payment and the inhabitants of the ghetto
Litzmannstadt were forced to exchange their money for the (almost worthless) receipts. For this reason, the coins belong to and
Banknotes of the Ghetto Litzmannstadt actually to the official editions of the German dependencies.

To maintain the fiction of a Jewish Government, are all banknotes issued in the ghetto with the printed signature of the
Oldest of the Jews (Rumkowsky) provided. Issued were 10 Pfennig coins (2 different material magnesium) as well as 5 and 10 mark pieces in
the materials aluminium and magnesium, as well as a very small amount of 20 mark pieces in aluminium. Of all coins, there are more counterfeits than
Originals - these should be bought only with expertise, or in stores with warranty and return policy. There are notes with the
evaluate [of] 50 Pfennig, 1 mark, 2 mark, 5 mark, 10 mark, 20 marks and 50 marks. There are still rationing documents like talons for lunch,
Additional meals, etc., bread cards, Casino tokens (for the Gestapo) and more vouchers. These are partly in the book by Hans-Ludwig "The money of terror," Grabowski (S. 355 to S. 393) described and illustrated.

Hanno Loewy writes in his foreword in the book Litzmannstadt – a chapter of German history of money (author of the book: G.Franquinet,
Peter Hammer, H.u.L. Schoenawa): "fifty years ago, in the summer of 1944, the ghetto in Lodz was liquidated. Behind these stark terms, this is at the end of four years of cynical illusion. For four years the German authorities in the annexed Polish city had maintain[ed] the fiction of Jewish self administration and at the same time [kept] the Jewish population [in] starvation and forced labor, finally [sent] off [in] 1942 through deportation to the death camps, [and] murdered."