I haven't had direct experience with this but some of the ideas I've heard from successful crowd funding campaigns:

• Invest in a video that tells your story about your product
• Consider running a marketing campaign while you are running the kickstarter campaign - social ad buy seems the most obvious
• Encourage everyone that you know, in batches across each day of your kickstarter campaign to donate at least something - I've heard that the featured kickstarter projects are based on a day to day number of backers (doesn't matter the amount they back)
• Aim to get in the popular or new & noteworthy categories everyday

Let us know if you end up putting up a campaign, and goodluck