Read to your boys. One of my first memories as a child was tricking the Ben Rogers and some of the other boys into white washing Aunt Polly’s fence.
Studies say that children between the ages of 2 and 9 have difficulty descriminating between fantasy and reality. I know this is true because when I read Tom Sawyer I was in another world and time and it helped to craft my childhood in a very positive way. I didn’t trick any of my neighbors into to doing my chores, but we did go off on some adventures, digging for treasure and fishing in the creek with just a stick a string and a paper clip. The worlds your boys can visit are innumerable and once they catch the bug for reading it is a condition that will stay with them forever.
Some great books:
The Adventures of Tom Sawyer (Great Illustrated Classics)
And for the little ones 5 & under: