Why not have a competition? Our high school, other schools, here and there through out the city, people could use a place to sit for a moment. I was wondering about a cement form like Bears on Broadway or the wolves but that could be used to sit on? People could paint and individualize them but they would all have the same shape, a cohesive look, structure.
Or if we leave it up to the students at the high school, they could come up with seats out of recycled pop bottles, maybe squished pop cans, wooden structures, re-purposed logs, tires, …unlimited the things they might come up with, they just may not be as permanent. Non permanent would be fine as long as they have fun making them and realize they may only be out for a short term before they need to remove them. Maybe the BCT class could collaborate with the arts class, and it could be a school project….. ?