Segments pop up, they appear, pop down, they disappear.
Couldn’t be simpler!
Cut the 3 Digits drawing, Bus2 02, on a thick material, and print the segments template, Bus2 01, on Cardboard, bending over the grey lines, and the middle of the black part. Rivet the holes, you got a Bus Stopper!
Buy the plans, here:
http://www.ponoko.com/design-your-own/products/busstopper-pop-up-segment-model-8071