The school I work for runs extra Summer School classes over the summer break here in Japan and all the teachers are given some certain amount of freedom in how they teach the curriculum. Everyone is encouraged to make displays, signs, games etc. Basically let your inner child out and make some cool stuff :)
Part of what I have to teach is the western zodiac. The section in the kids textbook was really lame and everyone knows LEDs make things 100x better so this is what I have come up with... the LED-edge-lit-zodiac-star-sign-display!!
Heres the basic plan: