Two smart Swedish ladies have invented an invisible bike helmet, so this is just for you bike riders; watch the 3 minute video in the link below.... and tell me you don't want one! :-)
http://jalopnik.com/swedes-develop-invisible-bike-helmet-1460189477?fb_action_ids=183535305171832&fb_action_types=og.likes
http://jalopnik.com/swedes-develop-invisible-bike-helmet-1460189477?fb_action_ids=183535305171832&fb_action_types=og.likes