Here's a quick script that will print out the image URLs of the selected tokens to the chat.   (() => {
    var CMD = '!GetTokenUrl';
    
    on('chat:message', msg => {
        if(msg.content === CMD && msg.selected.length > 0) {
            var urls = _.map(msg.selected, selected => {
                var token = getObj('graphic', selected._id);
                return token.get('imgsrc');
            });
            
            sendChat('GET TOKEN URLs', urls.join('<br/><br/>'));
        }
    });
})();
 Just select the tokens with the graphics you want and enter !GetTokenUrl in the chat.