Saw this in the news today
Poor man's floating home turns Rio recycling model
By Andrei Khalip
Sun Mar 18, 8:32 AM ET
A floating house built out of trash in a reeking channel of a Rio de Janiero slum will be preserved as a model for recycling in a government anti-pollution campaign.
Luiz Bispo says his house, kept afloat by hundreds of empty plastic bottles, had been set to be demolished by authorities. But popular support and unexpected help from the new state environment secretary, Carlos Minc, have turned it into something to boast about.... he spent about $170 to build the house, mainly on cement and roof material. The rest came from construction waste and furniture he found at dump sites.
full story HERE