There are plenty of cool educational robots and electronics kits available for kids these days. They are designed to get your child started with programming faster. Apps such as Everything Machine are worth playing around with as well. It allows your child to build things using the hardware and sensors already on your phone.
Everything Machine lets you build machines and connect built in sensors, such as gyroscope, microphone, and the camera. You can use logic gates and routers to build more sophisticated machine. The app is designed to introduce your child to programming. In fact, it supports multiple user profiles. It is available for under $3.[where to get it]