We've been getting great entries for our Made in Eureka contest. You guys must really want an iPhone ;).
We've got another example of a great entry here by Sean Ross for a holographic rear vehicle display. It's got three states, left or right turn, stop and stolen (which is triggered by the car alarm). Like this invention, your entry doesn't have to be practical or "realistic." It just has to be cool and good. Hit the link below to see how to enter.