Free Baby on Board BadgeYou can get a free Baby on Board Badge by simply filling up a form. Travelling on the Tube can be tricky for mums-to-be, but having a Baby on board badge makes it easier by letting other passengers know that you have a very good reason to need a seat. TfL supplies free of charge one Baby on board badge per person. Badges can be delivered to any address within the Greater London area, and South East England.