Remember 4th Grade? Remember slap bracelets – those little plastic/paper things that were shaped like measuring tape? Well, they’re back, and Chocolate Agency is out to make them cool again. Their new E-Paper series design is a slap bracelet, made with a thin flexible screen, that can tell the time and hold pictures. One may be worried about length adjustment, but fear not, for the ends can be extended by adding magnetic pieces. As for power, this thing uses kinetic energy to charge while you move around; for you educationally challenged, that means it uses the energy produced from you just walking around and doing your everyday thing. These look like the handcuffs my girlfriend uses on me. Don’t get excited, though, she only puts them on me when she’s not home, so she can make sure I’m not having any fun. And they are not really hadcuffs, either, more just zip ties with her picture glued all over. One more picture, and a video after the jump.