A picavet is a self-leveling rig that attaches to a kite or balloon string. The picavet stays level even while the string changes angles when blown by the wind.
Step 1: Making use of "trash" as building material
The picavet rig will hold the camera level and facing down no matter what angle the balloon string is. The picavet is like a self-leveling marionette platform.
My camera fit into the foam packaging from my G1 phone perfectly.