Its called the Ring Clock, and is meant to be a time telling device worn on one of your fingers. It allegedly uses ultra-thin mono-color LEDs and a ultrathin rechargeable lithium polymer battery to display the time at the twist of its body.
Solar Powered Window Socket designed by Kyuho Song & Boa Oh - The Window Socket attaches easily to any window, harnesses solar energy from its location, and transfers that energy into an internal battery.
The printed pen graffiti)- it's functionally equivalent to the standard printer's print head, but made the shape of the pen. With it, without computers and modeling software, you can imagine something you painted models, like graffiti.