66 results found displaying 1-3
    
yair3777338
 USA
Spoiled Milk Detector Printer Friendly Version
Design milk cartons which have a litmus strip that changes color depending on the freshness of the milk. A face could be printed over the strip - turning green when the milk is spoiled.

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72°

    
Murray Bennett
 USA
Colored Salt Printer Friendly Version
Die salt some color. Possibly red so that you could see how much you are putting on your food. white salt is to hard to see on most foods.
Reward: Just being able to see my salt will make me and my blood pressure very happy. 

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72°

    
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°

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