i came across this web service and it got smartphone app too.
""Rent Out Your Toilet with Cloo’
CLOO' is a service designed to help city dwellers make some spare cash by renting out their bathrooms to people who are desperate to find a clean place to pee. Hey, times are tough, and, where there's a need, there's a market.
You can see how the service works in the video above. In their own words:
CLOO' is based on one simple truth- we all have to pee. Though in urban cities finding a clean, available restroom is difficult & frustrating. That's where CLOO' comes in.
CLOO' is a community of registered users who choose to share their bathrooms and make city-living easier, while earning a small profit. Using social media connections, CLOO' shows what friends you have in common with the host, turning a stranger's loo into a friend of a friend's loo.
The next time you're desperate to find a bathroom near you, you can use CLOO' and the power of your social networks to find friends of friends who will let you use their bathroom for a buck or two. I didn't see the app downloadable on CLOO's site yet, but you can follow them on Twitter to get updates and find out when you'll be able to profit from your bathroom.""""