Take emojis and stickers offline to real life.
Incorporate into messaging systems (Facebook, Viber, a new app just for this) the ability for users to “leave” messages, emojis and stickers at real life spots in the city. When the recipient approaches the spot, the system will either show him the message or guide him to the place (a game like hot-or-cold) and then show him. The spot can be a meaningful one, or just somewhere the sender knows the recipient will be like on route home.
Visit the places that inspired and are part of the Harry Potter world.
A game app that gives you hints on where to go. When you find such a place the app – using augmented reality – will show you facts, stories and additional “things” when you point the camera at the spot. You can collect “stuff” from places you managed to find.
A fun way to get reacquainted with old classmates.
You are the game organizer. Prepare an online table. The first cell of each row is numbered. You inform each of the participants which row is theirs. They have to use the next cell in the row and fill it with current facts about themselves. Everyone tries to guess who is the person in each row, based on their current facts.
For fun and to improve your accent in any language you like to learn.
A website publishing “the best accent” competitions. Competitors will have to record themselves pronouncing the sentences the competition stipulated in the language required, and viewers and experts will vote on the best ones.
Are video games good for your kids? Which ones?
A website that reviews video and other games and tries to find out what are the benefits for the kids playing those games (what skills they are developing, both physical and mental), and what are the potential detriments.