Talking about manga...I was hoping to use the main character's ability from Darwin's Game. 

It recreates the desired item in the user's hand. Of course it will need some thought because even in the manga it's not fully explained yet. As of now the user would need to have owned/held the item already. So I couldn't make appear whatever whenever. In the manga the item is not teleported but as I said before recreated. Copied, if you will. Thus a new problem arises... Like duplicating money or gold and so forth. To founter this I was thinking of the simplest option. Duplicated items degrade verry fast when not in contact with the user. After a few seconds leaving nothing behind

Well thats the basic idea...