Problem:
Almost everywhere around the world, people tend to compete to get a seat in public transports.
Fun Solution:
To provide a few of Screen MP3, Radio or Video players (with internet connection), hanging on buses’ or train walls, attached together with a headset on each player. It’s placed quite high, so people need to stand up to use the device. In that way, standing will look more pleasing than sitting.

Submitted by Natasha Angeline

The Trash target is to prevent people to throw away their trash on the streets. When people want to throw away their garbage they can aim and throw. Different melodies will play depending where the person hits. If a person hit the middle besides playing the winning melody the lights will blink.
Submitted by Carina Lindberg

The electric light trail is an obsolete and boring place to excercise. To get motivated to go out running there we need to upgrade it to the electric light trail hunting game. On the trail different animal targets will appear and a perfect hit with your (harmless) laser gun will give you various points depending on species. Running the trail will be during night time using a headlamp and the animal targets will be lit. A miss will naturally "scare" the target away and it disappears rendering you unable to shoot it again.

Problem tackled : reduce the number of single-use bags that are distributed or sold in supermarkets.
Solution:grant the right to people bringing along reusable bags to choose the music played in the supermarket. People are given tags (like barcodes) to stick on their bags. When entering the supermarket, they scan the tag and choose a song to play in the supermarket.
Submitted by Nils Oj

The Problem: Our world is being contaminated by many things. One of them is batteries. Batteries contain heavy metals such as mercury, lead, cadmium, and nickel, which can contaminate the environment when batteries are improperly disposed. Batteries may produce potential problems or hazards like pollute the lakes and streams as the metals vaporize into the air when burned. Also expose the environment and water to lead and acid and more.Solution: I invented “The Battery Can”. This “Battery Can” can be used by adults, but it is much more fun for kids!!

You throw your garbage in a bin and you hear a voice coming from inside: -Thank you and have a nice day. or some sounds like pig is eating your garbage. But people would get more surprised if two bins can make a real conversation. Can you imagine two bins in a short distance. Suddenly a voice coming from inside: -This town is full of nice people only today this is the 50th man coming tome. And there is a voice from the other bin: -Don't be show off my friend only for last hour I collect more garbage than you.
Submitted by Vladimir Atanasov

Many people don’t like to ride in dangerous streets; I do think that nobody should take a risk of that. My solution is to make many streets FUN and at the same time to seem natural (green, brown and more). My opinion is that it should be colorful but at the same time natural.
Instead of making new streets with cement, with rocks! Because the rocks don’t contaminate and the cement hotter the day. The people will use more the fun streets than other ones that are worse. These fun streets I call “Natural Streets”.
Submitted by Andrea Aguilar.

Credit cards make life so much more easier that you do not have to carry stacks of moneys any more. Every time when you buy something the only thing you use is just a piece of card. But sometimes it also makes consumption unreasonable. People lost the sense of physical money. I created some new concepts of credit cards to remind people that digital money also has the similar physical attribute as the old money. They are not just numbers. You can feel it so that you can try to control your consumption.

Submitted by Xu Xin

Smoking cost a lot both to individual and societies: healthcare, litter, fires, land used to grow tobacco instead of food, lost productivity, etc. In order to help people quit smoking, booths could be installed in cities where future ex-smokers could get help during craving periods. During that hard moment, their mind and body would be solicitated by fun things so that they could forget about the need of nicotine. Future ex-smokers would be given a card with a code so that no helping session would be the same for them.