I don't know why companies that make phones haven't thought of novelty type mobile phones like in the shape of footballs, teddy bears for kids, cars or semi nude models for adults even pop stars, guns, fruit machines, etc.

How about having a mini air pump in the tyres of cars, bikes, etc. so that when your tyre reaches a certain low the pump activates, releasing a slow pressure until it's up to original pressure.

A washing line that retracts like a dog lead so that housewifes don't have unsitely washing lines all over the garden when the washing's done - plus preventing accidents.

This system needs lots of work and research but basically it would consist of strong electronic magnets placed in the sides rear and front of cars with some sort of swivel lock devive the idea being that if a car or lorry were to start to crash into your car, a strong north or south pole magnetic force field would spin in opposite pole to the approaching vehicle and lock on both vehicles, so that north poles would push south pole magnets away, pushing the vehicle away from any collision...

This is like an ordinary skateboard with a large ball barring in the center instead of wheels.