Airpnp

"Airpnp: It's like Airbnb, but for toilets"

We've all been in a situation where nature calls at a crowded event and an empty toilet is nowhere to be found. Airpnp is an experimental service that aims to solve this problem -- by letting residences and businesses rent out their bathrooms to people in their immediate location who need to use it...

Update: Link was broken -- fixed now!