The Birthday Challenge

I guess you might say our first "big" challenge has come up.  We have a little friend with a birthday just around the corner and as you all know that have been following along we cannot purchase anything that isn't depletable or edible.  The friend is turning 9 so a basket of fruit really isn't going to do the trick.  What on earth can we make for a 9-year-old boy that he will actually like?  I am limited to the supplies I already have.  This calls for a trip up to the attic storage to check out what kind of supplies I have on hand.  I will definitely post a pic of what I come up with soon.