Instructable request: Animated (Hologram) childrens school rulers popular in the 1980's ? Answered
Remember the plastic school rulers with the moving pictures on it - where the picture seemed to move as we moved the ruler - plastic refraction ones I think. Can someone please tell me how to make them at home. These rulers used to be quite popular a while back - now I cannot find them - so why not make them for my kids instead! :) Thanks.