I've just ordered three for my grandchildren Bruce 
Ah, how grand Jim
during a lull in the upcoming holidays I plan to pull each one aside and we will build it together, very simple & easy to do. Then they can go into a dark room ...or outside at night and crank to their hearts content.
I have two that are the perfect age Bruce and will do likewise, the newest baby I'll date it (unmade in a box) and he will know I bought it the same time as his older cousins got theirs