Sony Nextep: Designed by Hiromi Kirik from Japan Developed to be worn as a bracelet, this computer concept is constructed out of a flexible OLED touchscreen. with holographic projector (for screen), & pull-out extra keyboard panels!
WTF: This Wearable Turns Your Skin into a Touchscreen
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.