I have set up two Kickstarter projects - the first was for 10K and would have funded if the executive producer had been willing to accept a 4K deal from a friend who requested an associate producer credit and the majority of the money back after funding. That would have given us over 5K to work with for post. I still think it was a mistake to turn that down.
The second project is currently up and running, for a play I'm producing starring a comic friend of mine, Jann Karam - "Reclining Nude On La Cienega". We're trying to hit our minimum goal of $3,250 and then go beyond that. We have 10 days left and we're almost exactly halfway there - I think we'll achieve funding. It helps that she is recognizable and funny and has some credits, etc. under her belt.
I agree with the others - having a good video, whether funny, charming, mood-inducing, whatever - something that grabs the imagination and has some kind of production value that seems like everything involved with the project is professional and above-board. Good rewards and descriptions of same. Hitting up your social network every day, because things in the newsfeeds go by so quickly, if you have friends with lots of friends. A strong project and marketing, basically.
Put a lot of effort into your Kickstarter page, because it's what everyone will be looking at for signs of potential success. No one, not even friends and family, want to throw their money away that badly.
gelder