The Dollar ReDe$ign Project is an open-source effort to bring new currency ideas to the fore. Michael Tyznik describes his design (above):
Money and the color green are inextricably intertwined in American culture. I think it’d be a mistake to remove green as the primary color. Instead, each bill has a brightly-colored holographic strip embedded into it which contains the denomination. The width of this strip also changes with the denomination. This introduces an element which makes each bill extremely easy to identify. There is also braille denoting the bills’ denomination on the holographic strip.
More submissions here. (Unfortunately for them, Treasury took a far more modest approach to the new $100 bill unveiled this week.)
2006-2011 archives for The Daily Dish, featuring Andrew Sullivan