I'm not sure this is really a good fit for a Kickstarter project. I love rockets/space/science/etc and fully support researching cheaper launch methods, but for most people to invest, they want to get something back. There are very few people who will/can donate to something on a purely altruistic basis. These guys aren't a charity and I can't even get a tax write-off. Pushing a button, while cool, is not really a re…
What about sending any tiny object (with weight and size restrictions) into space and recovering it?
The higher levels could offer to send a small custom payload into space (if not orbit) e.g. a smartphone with sensors.
The first two would be more for the novelty (this ring was in space!), where the last might be for a university project or something.