A simple rig to hold a small point & shoot camera for aerial photography from a kite or helium balloon. Published under CERN OHL. More information is here. Some files were updated V/07/2017.
My site has instructions for printing and assembly and you can order hardware for assembling the rig.
Learn about grassroots mapping at Public Lab.
There are files for four different camera trays: Standard, Wide, One-lip ("Xwide"), and the new fancy version with camera grasper.