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sugartaspice
 USA
Color Changing Ice Cream Printer Friendly Version
Ice cream that changes color based on temperature. For example it is blue while in the freezer, by the time u take it out and it is at room temp. it turns purple, and when it starts to melt it is pink.
Reward: Free samples 

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71°

   
jp
 USA
Electronic Car Key Printer Friendly Version
Generally we park our car and lock it through our remote electronic locking device. When you leave the parking place on your work, you some times wonder whether you locked your car or not. There is no way to know unless you walk to the car and lock/unlock it once again.
My suggestion is the remote key should have two LED's of color red/green. When the car is locked, green LED should glow and vice versa. Thereby we can know whether car is securely locked or not just by looking at the key. This does not involve much technology, as LEDs can be lighted through potential free contacts by using power of key battery.

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69°

   
yair3777338
 USA
Digital Tie - Never change your tie again! Printer Friendly Version
How about a digital tie where you can change the color and pattern to match your suit.

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68°

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