A friend turned us onto the free monthly publication from Lego. My boys love getting their own "mail" (they happen to fall into two different age groups, so we wind up with two different magazines each month).
Every issue has at least one project to make using the "standard" Lego blocks. This month, Jack enjoyed making a dragon.
If you are interested in getting yourself (or someone else) a fun, free publication, visit the Lego Club Magazine online.