I would like a scanner in a school that sends the scanned image form a document or picture directly to the internet, with cost $ for sure.
Make a live debate of the two candidates to the Brazilian presidential chair, backed up by a polygraph.
An iphone app that identify the ambient music and suggest the best drinks to go with it.
Encourage regular citizens to have a rooftop garden.Those living in a building with a green rooftop pay less taxes. Reducing CO2 footprint.
Get together Stencil and Silk Screen technics to build a machine for printing series of images around the city.
instalar teleféricos para os pedestres na Avenida do Contorno - BH - MG, especialmente no trecho conhecido como "tobogã"