Mirror Advertising

Every Public Toilet in the world have mirrors installed on top of every sink the idea i have for you is, supply free mirrors to new public toilets or existing public toilets with you're advert on it, if you don't have the budget to supply mirrors with ads on it simply just print small advert stickers that easy to remove and paste it on the existing mirrors, get permission first and maybe pay a small fee tho the building owners for ad space

Here is a example of how the mirror will look like: