1. Panic PIN
You use this PIN at the ATM when you are being robbed. Say if your PIN is 1234, you key in 4321 (in reverse order) at the ATM. You will still be accepted and can withdraw money. But the police will be notified to come and rescue you. You can also give the reverse code when you are coerced to give out your PIN.
2. Tractor balloon driven airship

A balloon driven plane that can control the horizontal direction. I am not sure the physic will work out since most of the force provided by the ballon will be up instead of horizontal directed.
3. Tails For All
Tails for Humans.
“One of my profoundest regrets about being human is that I am not equipped with a splendid and useful tail, like many other members of the animal kingdom.” Mickey the Fish
Hmm…a human with a fish nickname wishing he has a tail? I guess a tail will be really useful if we need to swing around trees. Maybe a tail can help us by controlling the computer mouse too.
4. Cream Cheese Ring
Preformed Cream Cheese Rings for Bagels
I don’t really like Bagels but cream cheese on it will make it better. But gastronomically sinful it is.
5. Evil laugh activated hand dryer

The hand dryer is activated by your evil laugh instead of the usual or infra red sensor. So you laugh, rub your hands dry and boost your evil ego at the same time.
6. Custard-Filled Speed Bumps
A custard-filled, speed-sensitive speed bump.
This bump would allow safe passage to all law-abiding vehicles. Custard will change from liquid to solid at low speed. But at high speed, the hump would burst showering the offending vehicle with incriminating custard.
7. Film Noir Home
A very ‘wired’ home which knows what you’re doing and uses voice synthesis to announce, in the first person, what you are doing
For example, you wake up in the night and go and get a glass of water. As you fill your glass from the kitchen tap, a dark, gravelly voice announces “It was late at night and I couldn’t sleep – I was thirsty so I went to get a glass of water”.
If you record down everything, it becomes like a computer stored memory of your life.
8. Flocking Road Cones
Create a solar-powered artificially intelligent motorised road cone that, through the simplest behaviour model possible ends up grouping around holes in the road.
Wow…I actually like this idea. But of course they must learn how to avoid cars. Maybe a simpler idea is to just place 2 cones at the ends of the line that you want to form. After placing the end cones, the rest of the cones will just form a straight line by themshelves.
9. Supermarket Pirates
While your faithful assistant pushes your trolley, you ride, in full pirate captain regalia, in the bows. On sighting a laden merchant ship / somebody else’s trolley, unfurl the Jolly Roger, come alongside, board ship and plunder. Should trouble be sighted on the horizon in the form of the King’s Navy, or even store security, flee to the Checkout Havens. If cornered, defend to the last man with tins of beans and packets of biscuits.
10. carrymehome.com

This is a service that calls 5-6 people to carry you home when you are tired. Reminds me of the human powered carriage service back in olden china.
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