1. Certain cities that allow and cater to animals to live in the city with the people. Creating animal bridges and feeding points. Roads with high wall around them and slow speed limits for other areas.
2. Earrings that illuminate connected to a phone app to change colors and go to music.
3. Cars that connect to other cars on the highway to save gas.
4. Cars that drop spools of thread behind them to get stuck in their pursuers wheels.
5. Magic phones that don't use phone towers but only use wifi.