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The unbreakable Umbrella Printer Friendly Version
Have you ever gone out for a walk the day after a windy/stormy day/night and noticed on nearly every street/avenue the twisted carcasses of broken umbrellas? Umbrellas operate fine on rainy days where there is just light to moderate wind - that is they perfom their design function beautifully (keeping the rain off you). However on days when winds start to gust and squall, it is a full time job just trying fo keep the umbrella facing into the wind. At intersections/road junctions and in exposed areas the design flaw of the umbrella comes into play. An abrupt change in direction of the wind catches you off-guard, catching the umbrella and blowing it inside-out. If this gust is strong enough your brolly is busted instantly(hence the discarded skeletal remains (of the brolly) which are discovered the next day! Is it possible to design one which could automatically adjust itself to abrupt & violent changes in windflow? I would be interested in purchasing such a brolly!
Reward: Free gust-proof brolly! 

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Quick Connect and Release Vehicle Tires Printer Friendly Version
Vehicle tires are attached and detached by tightening and loosening several lug nuts to the rim. This idea would be to design a quick connect mechanism that would easily attach and detach a vehicle tire. This design should be secure enough that it would be difficult for robbers just to take the tires. The good point of this idea is that it cuts of a lot of time in replacing a vehicle tire.

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Perfectly Weighted and Balanced Coins Printer Friendly Version
Have you ever noticed that on the two sides of every coin there is a different design? Well, the two designs are there for appearance sake and not for flipping the coin in the air for a game of heads or tails. You can still make a unique face (for heads) and another design on the other side and still be able to balance the weight perfectly for a 100% chance of having a 50/50 chance at heads or tails the same way a throwing knife is balanced.
You would then have a true flip with that being the main problem with fairness, but the other factors are left to chance. You could make them any size with any color or design as long as they are balanced and start a trend of collecting different flipping coins. Maybe even break into the gold, silver or platinum industry and make them collectable for investments as well. You could have them specially made for the designs on either side of your choice. You could add your favorite kid or adult game designs. Anything can be balanced and placed on them.
Reward: A person's face on one side fitting the use for the event of the coin's usage. Or anything imagined! 

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