British IT news website The Register is progressing with plans for the Paper Aircraft Released Into Space (PARIS) programme --- to launch a paper plane from near-space altitudes with a high-flying balloon:

• El Reg space bureau firms up PARIS kit list -- The Register

The plane will be instrumented with a miniaturised GPS unit and small digital camera.
The work is supported by Robert Harrison, whose Icarus Project has already launched a number of payloads to high altitude.