[eno_]

Excellent call on the peroxide. I'm no expert, but you could make a Sterling engine that way, I think.Makes your teeth white, too. Just the thing for that important date. What are the combustion products?

[Joe Bonforte]

"What are the combustion products?"

That's the beauty of it. Water and oxygen. The biggest drawback I see is that the thing would have to put out a hot gas stream which provides the propulsion.