If I had the time and the financial means to do so (and legal rights), could I design, build, launch, and deliver a small (very small) payload to low Earth Orbit? I think it would be awesome to put a small camera up in LEO and have it radio back a picture or two of the Earth before it de-orbits and burns up.
What would be the biggest hurdle to overcome? My gut feeling tells me that the sheer amount of fuel I would need would be the biggest prohibittor (all legal issues aside :) ).