Legos in the School Library

I'm really very excited.  Thursday is my trial run of a new program that brings 4th and 5th graders into the school library for lunch and and to play with legos.  My lego donations were slim, so I am hoping I have enough.  18 of the 27 kids in those classes signed up.  I have some mini challenges, a few group building projects, and a imagination challenge all planned.  I think we will run out of time before we get to finish everything.  But it gives me a starting point so that I can plan a real lego club for middle grade boys next school year.