It's a good start there, Marcus, nice job.
Here are a few pictures you can *link* to:
Japanese flag:
WW2DB: [Photo] Captured Japanese flag at the National Museum of the Marine Corps, Quantico, Virginia, United States, 15 Jan 2007
Japanese Type 99 light machine gun
WW2DB: [Photo] Japanese Type 99 light machine gun on display at the National Museum of the Marine Corps, Quantico, Virginia, United States, 15 Jan 2007
Both are found at the National Museum of the Marine Corps at Triangle, Virginia, United States. Note that for now you must *link* to them. Should you wish to actually use them, please contact the photographer Bryan Hiatt for permission. You can get in touch with him through me.
I hope this helps. I have many other German and Japanese weapons in photos that I've taken in museums, but I haven't post them all to WW2DB yet. When I do, I'll let you know probably through this thread (so please subscribe to it).