South American General

This hat made me think of some South American Military General, but it is probably nothing of the sort

Its some form of military field cap but from what army I can't say as it was found at second hand market

I've scrolled through hundreds of images of hats trying to pin it down, but when you don't know one military from another finding the correct place to look is hard.

The badge is red white red horizontal stripe which I thought might make it Austrian, but that does not appear to be the case.

The buttons at the front should undo to provide a way holding the cap on in windy weather, but in this case they seem to have a purely decorative function.

Well this happened

This theatre hat is more Arabian Princes than Prince

But you can just about get with it. 

A basic cardboard cylinder covered in fabric and then plastic decorations, it sets a scene well and could be made at home by anyone.

Pointy Bamboo Hat

This conical bamboo hat has a nice pointy shape.

Bamboo hats of this style are designed to protect the head and face of farm workers from the sun and rain.

Other English names for the conical hat include sedge hat, rice hat, paddy hat, bamboo hat, Raiden hat and sometimes coolie hat. 

But in Malay they are called the Terendak, In China Douli which translate to Bamboo Hat, in Japan Sugegasa, the Do'un in Cambodian and there are many more regional names

Ballistic Helmet

Whilst this helmet was sourced from a army surplus store its not really a military helmet as far as I known, its some for reproduction tactical helmet probably used for airsoft or paintball or similar

Its does offer some protection though its not marked as being to any particular standard