ooppsss.....ok...here is a list of somethings I do outside with my students.
nature sculpture (think of Andrew Goldsworthy)
The kids love to go outside and i send their portfolios and work home 2 weeks
before school is out, so most of what they do I let them take home that day.
One thing I will say, is that often, I will keep back 20 or so works...and
use them for bulletin boards at the beginning of the year. Saves me from
thinking something up and it is new work that no one has seen. Also the work is
usually scenes of and around our school, so it is a nice back to school board.