Two Canadian High School Students Send a Lego to Space

http://youtu.be/MQwLmGR6bPA

They also constructed a lightweight Styrofoam box to carry three point-and-shoot cameras, a wide-angle video camera and a cellphone with a downloadable GPS app. They purchased a professional weather balloon for $85 online. The helium that would lift it up came from a party supply store. For launch, they put two mitten warmers in the Styrofoam box to keep the cameras working at that altitude. The whole project cost them about $400.source

Um, I suddenly have $400 to do this. What should I send to space?