Art students at my college are required to present a "senior thesis" meaning we must fill a gallery with our own art based upon a specific theme or concept.
If you check out my page you can see some of the art I've already done based upon light as a medium.
It includes video of these sculptures. I've included stills at the bottom of this post, but it doesn't do them the justice that seeing them in motion does.
Check it out. Even if you don't have the means to back me I'd be really pleased if some people here just shared my page on their facebook pages.
Have you considered adding in any tiers below $20? I like the "Death by a thousand paper cuts" . Would recommend checking out this promo are doing to help keep pledges rolling in: "I'll back your campaign up to $15" - i-will-contribute-up-to-15-to-your-kickstarter-project-t1511.html
Learn how to succeed on Kickstarter: here. Submit a free press release for your Kickstarter campaign here.