So its Charlie Sheen who invented the Kickstarter rewards scheme in 1993
Watch from 4:06 minutes onwards if the video does not start at that time.
Reward1: For $15 you get a hot shots T-Shirt
Reward2: For $25, a hat and T-Shirt
Reward n: For $20,000, you get billing above the title.
He also holds the fundraising record as well, raised 4.5 Million in 2.5 hours.