Classification: Unclassified >We have thought about kickstarter, but I personally don't see the appeal.< While you've discounted kickstarter, it has been successful in funding various space-related projects (but of course there have also been failures). A quick trawl of the #space tag shows most are payloads (smallsats) but there's at least one propulsion project: http://www.kickstarter.com/projects/2027072188/plasma-jet-electric-thrusters-for-spacecraft?ref=tag #Space tag: http://www.kickstarter.com/discover/tags/space?ref=sidebar I suspect studying the successes (and failures) would be useful if you want to go this route. This one clearly was boosted by appealing to an existing fanbase: http://www.kickstarter.com/projects/573935592/were-putting-a-tardis-into-orbit-really?ref=tag Note they're a payload on the first launch of Interorbital Systems Corporation "Neptune" clustered rocket: http://www.flightglobal.com/blogs/hyperbola/2013/09/small-and-sweet-nasa-wants-a-dedicated-launch-vehicle-for-cubesats/ http://www.interorbital.com/index.html Alex Aplin "Personal e-mail. This e-mail is personal. It is not authorised or sent on behalf of Dstl. This e-mail is the personal responsibility of the sender." "The remarks in this e-mail are personal and do not represent Dstl or Government policy." "This e-mail and any attachment(s) is intended for the recipient only. Its unauthorised use, disclosure, storage or copying is not permitted. Communications with Dstl are monitored and/or recorded for system efficiency and other lawful purposes, including business intelligence, business metrics and training. Any views or opinions expressed in this e-mail do not necessarily reflect Dstl policy." "If you are not the intended recipient, please remove it from your system and notify the author of the email and centralenq@xxxxxxxxxxx"