We used to have a rocket, the sort where you had to legally do a 10 second countdown before you hit the button, to let people know you were sending one up.
Now, hubby has a radio controlled car, though he had considered a helicopter himself but it's the problem of finding areas that are suitable and the conditions and such since it's windy most of the time here, which meant he'd probably get very little usage time. The heli's above look cool though