Nice group, too bad they didn’t have anything else to this person.

Judging by the pin and construction it looks like a piece of jewelry to me. Possibly made to hold eye glasses when not being worn, you slip the ear piece through the hole in the center to carry them.    

Military? 

Flight Instructor's wing.  Usually worn on the lower right sleeve of the service coat.

Saw this on Marketplace. Looks like the 40s equivalent of photoshop.   

A black belt under a long jungle jacket is not a problem of any making.  Given the amount of noise a rifle company makes while moving they would hear you way before seeing a black belt.  Take you blouse off and the stark white un tanned arms and chest (many did not and do not wear t-shirts in the hot field) that are revealed would be way brighter and attract more attention than a black belt too. Black belt = Non issue.

Good gracious, hopefully they are demilled/dummies….If not an unwilling or willing “dummy” is in a pickle if they continue with the sale🙈

That's great. I did not know that. Thanks again

I thought that I had seen this before on this forum but image searches only bring what Mort sold uswarpatches   https://www.uswarspatches.com/ww2-us-cbi-transport-unit-patch/   He listed it as "CBI Transport Unit." Does anyone have a solid ID on this one? Thanks in advance. 

You did good!  All real.  The first two are nice Japanese-made examples.   Not certain where the 3rd was made.