Alright, so I'm a bit like a kid in a candy shop with this stuff.  Another structure I never owned as a kid, but looks kinda interesting is the G.I. Joe missile launcher.

The white plastic on the launch pad pivots at the front, allowing the missile-laden flatbed truck to back up, threading on the missile, and then pushing it upright with the "fin" on the launch tower.  Here's a closer shot:

I've seen other posts where folks rightly call out that the launch pad (which is fairly rare) is based on the dump yard, which is insanely common.  From what I can tell, it definitely is.  the big difference is that the dump yard is raised up right where that pivot point is (I can't find a pic now, but I've seen one of the rocket launcher pad without the top on, and it's completely flat inside, without the hump): 

So, back to that whole "kid in a candy shop" analogy.  I just bought a missile launcher and missile from e-bay, and it's in the mail.  Making a 3D model of the missile & printing copies seems like it should be simple.  But what really excites me is: can we make a launcher platform that sits on top of an existing dump yard?  Sure, it won't be exactly the same as stock-- that doesn't bother me.  But can we make something that seems authentic and true to the original set?  I'm thinking that it will need hinge points spread wider, to get around that big hump.  And it will still need the fin in the middle to allow it to be pushed upright.

What I find particularly interesting with going this route is that apparently the single hinge point was a really common point of failure and breakage.  If the good folks at Tyco would have had more time to iterate on the design, I wonder if they would have ended up with a version with two hinge points off to the side?

And for bonus points: One of the awesome things about US-1 was that most things you could both pick up and drop off.  As far as I know, there never was a way to pick up a missile.  What might it take to build a missile loading facility?