There may be many fun games for kids over internet but coloring pages from Disney story books have no substitute. They can be provided by school teachers as a fun activity too. But you also need to award your child when he is done with the coloring. Kids need appreciation and it can be done by encouraging them through rewards.
As a young ones parent or a school teacher you need to plan activities with him for coloring pages. For the most part the parents tend to give those coloring pages to kid to keep him busy. But the fact is that these kids need to get some mental exercise from these coloring pages and it should be construed by the kid as a mundane exercise.
Oh and then when we got to our destination, the coloring pages were given as a gift to their Nan - so you can see how great this simple hobby is!