I just attended a warbird airshow on the 4th, and there was a display of WWII items. I saw this German uniform...the BELT. I thought that belt would be a great addition to a Mando costume! I know it wouldn't work for a Boba or Jango, but I thought it was cool.
The guys with the display have a museum/store of military memorablilia. Don't know if they have the belts or not.